K.M. · M. O. · M.OLSEN · Mr. Klaus Malling Olsen
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Gulls of Europe, Asia and North America | 978-0-7136-7087-5 | 2004 | |
| Gulls: Of North America, Europe, and Asia | 978-0-691-11997-7 | 2004 | Hans Larsson |
| Gulls: Of North America, Europe, and Asia | 978-0-691-11327-2 | 2003 | " |
| Gulls of the World: A Photographic Guide | 978-0-691-18059-5 | 2018 | |
| Skuas and Jaegers | 978-1-4081-8907-8 | 2013 | |
| Skuas and Jaegers | 978-1-873403-46-4 | 2000 | |
| Skuas and Jaegers: A Guide to the Skuas and Jaegers of the World | 978-0-300-07269-3 | 1997 | Hans Larsson |
| Terns of Europe and North America | 978-0-691-04387-6 | 1995 | " |
| Terns of Europe and North America | 978-0-7136-4056-4 | 1995 | " |
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