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| title | media type | ISBN-13 | year of publica- tion | |
|---|---|---|---|---|
| Barracuda. Polit- Thriller. | Broschiert | 978-3-404-13298-0 | 1993 | |
| Bishop in Check | Paperback | 978-0-06-100133-8 | 1991 | |
| Das Berlin - Memorandum. | Broschiert | 978-3-404-13226-3 | 1991 | |
| Das Kobra- Manifest. | " | 978-3-548-01788-4 | 1980 | |
| Das Kobra - Manifest. Polit- Thriller. | " | 978-3-404-13329-1 | 1993 | |
| Der neunte Befehl. Polit- Thriller. | " | 978-3-404-13232-4 | 1991 | |
| Fünfhundertfünfundfünfzig ruft Mandarin. | " | 978-3-548-01722-8 | 1980 | |
| Himmelfahrtstango. | " | 978-3-548-01638-2 | 1980 | |
| Knight Sinister | Paperback | 978-0-06-100099-7 | 1990 | |
| Kobra Manifesto | " | 978-0-00-616128-8 | 1986 | |
| Kobra Manifesto | Unknown Binding | 978-0-00-222487-1 | 1976 | |
| Mandarin Cypher | Hardcover | 978-0-00-615782-3 | 1985 | |
| Mission in Sinkiang. | Broschiert | 978-3-548-10002-9 | 1981 | |
| Nordlicht. Polit- Thriller. | " | 978-3-404-13068-9 | 1989 | |
| Pawn in Jeopardy | Paperback | 978-0-06-100134-5 | 1991 | |
| Pekin Target | " | 978-0-00-616642-9 | 1982 | |
| Queen in Danger | " | 978-0-06-100109-3 | 1990 | |
| Quiller | " | 978-1-932100-17-4 | 2004 | |
| Quiller | " | 978-0-06-100536-7 | 1994 | |
| Quiller | " | 978-0-515-08415-3 | 1985 | |
| Quiller Balalaika | Hardcover | 978-0-7867-1265-6 | 2003 | |
| Quiller Bamboo | Preloaded Digital Audio Player | 978-1-4332-7649-1 | 2009 | |
| Quiller Bamboo | Audio Cassette | 978-1-4332-5048-4 | 2008 | |
| Quiller Bamboo | Paperback | 978-0-380-71161-1 | 1992 | |
| Quiller Bamboo | Hardcover | 978-0-688-09696-0 | 1991 | |
| Quiller Barracuda | Paperback | 978-0-380-70814-7 | 1991 | |
| Quiller Barracuda | Audio Cassette | 978-0-7366-2023-9 | 1991 | |
| Quiller Barracuda | Hardcover | 978-0-688-08784-5 | 1990 | |
| Quiller KGB | Audio Cassette | 978-0-7366-1989-9 | 1991 | |
| Quiller KGB | " | 978-5-553-80358-2 | 1991 | |
| Quiller KGB | Paperback | 978-1-55773-217-0 | 1989 | |
| Quiller Meridian | " | 978-0-380-71534-3 | 1994 | |
| Quiller Meridian | Hardcover | 978-0-688-11797-9 | 1993 | |
| Quiller Meridian | Paperback | 978-0-7472-4161-4 | 1993 | |
| Quiller: Salamander | " | 978-1-932100-18-1 | 2004 | |
| Quiller Salamander | Hardcover | 978-0-7862-0338-3 | 1995 | |
| Quiller Salamander | " | 978-1-883402-40-2 | 1994 | |
| Quiller Solitaire | Audio Cassette | 978-1-4332-9546-1 | 2009 | |
| Quiller Solitaire | Audio CD | 978-1-4332-9547-8 | 2009 | |
| Quiller Solitaire | CD-ROM | 978-1-4332-9550-8 | 2009 | |
| Quiller Solitaire | Paperback | 978-1-932100-16-7 | 2004 | |
| Quiller Solitaire | " | 978-0-380-71921-1 | 1993 | |
| Quiller Solitaire | " | 978-0-7472-3976-5 | 1993 | |
| Quiller's Run | " | 978-0-06-100537-4 | 1994 | |
| Quiller's Run | " | 978-0-352-32348-4 | 1989 | |
| Quiller's Run | " | 978-0-515-09540-1 | 1988 | |
| Quiller steigt aus. | Broschiert | 978-3-404-13180-8 | 1991 | |
| Quiller: The 9th Directive | Hardcover | 978-0-7505-0955-8 | 1996 | |
| Quiller: The 9th Directive | Paperback | 978-0-7472-4758-6 | 1995 | |
| Rook's Gambit | " | 978-0-06-100157-4 | 1991 | |
| Scorpion Signal | Hardcover | 978-0-00-222428-4 | 1980 | |
| Sinkiang Executive | Paperback | 978-0-00-615693-2 | 1986 | |
| Sinkiang Executive | " | 978-0-00-615898-1 | 1979 | |
| The 9th Ninth Directive | " | 978-0-00-616129-5 | 1987 | |
| The Kobra Manifesto | " | 978-0-06-100532-9 | 1993 | |
| The Mandarin Cypher | " | 978-0-06-100531-2 | 1993 | |
| The Mandarin Cypher | Hardcover | 978-0-385-05107-1 | 1975 | |
| The Ninth Directive | Paperback | 978-1-906288-37-2 | 2010 | |
| The Ninth Directive | " | 978-0-06-100527-5 | 1993 | |
| The Peking Target | " | 978-0-06-100535-0 | 1994 | |
| The Peking Target | " | 978-0-86721-188-7 | 1983 | |
| The Pekin Target | Hardcover | 978-0-00-222606-6 | 1981 | |
| The Quiller Memorandum | " | 978-0-7653-0967-9 | 2004 | |
| The Quiller Memorandum | Paperback | 978-0-7653-0968-6 | 2004 | |
| The Quiller Memorandum | " | 978-0-06-100526-8 | 1993 | |
| The Scorpion Signal | " | 978-0-06-100534-3 | 1993 | |
| The Scorpion Signal | Hardcover | 978-0-385-12277-1 | 1980 | |
| The Sinkiang Executive | Paperback | 978-0-06-100533-6 | 1993 | |
| The Striker Portfolio | " | 978-0-06-100528-2 | 1993 | |
| The Striker Portfolio | Audio Cassette | 978-0-7366-1804-5 | 1990 | |
| The Striker Portfolio | Hardcover | 978-0-00-615780-9 | 1986 | |
| The Striker Portfolio | " | 978-0-434-31201-6 | 1969 | |
| The Tango Briefing | Paperback | 978-0-06-100530-5 | 1993 | |
| The Tango Briefing | " | 978-0-515-08505-1 | 1986 | |
| The Tango Briefing | " | 978-0-00-615779-3 | 1985 | |
| The Tango Briefing | " | 978-0-00-613909-6 | 1975 | |
| The tango briefing | Hardcover | 978-0-385-04281-9 | 1973 | |
| The volcanoes of San Domingo | Paperback | 978-0-00-615432-7 | 1978 | |
| The Warsaw Document | " | 978-0-06-100529-9 | 1993 | |
| The Warsaw Document | Audio Cassette | 978-0-7366-1808-3 | 1990 | |
| Tunesischer Tango. Thriller. | Broschiert | 978-3-404-13368-0 | 1993 | |
| Unternehmen Gorbatschow. Polit- Thriller. | " | 978-3-404-13263-8 | 1992 |