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by Robert LudlumHardcover details (USA). details (UK). details (Germany). details (Canada). ISBN: 978-0-312-27688-1 ISBN-10: 0-312-27688-5 St. Martin's Press · 2001 |
| See also: | ||
| 2017 | Mass Market Paperback | The Sigma Protocol |
| 2010 | Paperback | The Sigma Protocol |
| 2008 | Audio CD | The Sigma Protocol |
| 2003 | Paperback | The Sigma Protocol |
| 2002 | Paperback | The Sigma Protocol |
| 2002 | Mass Market Paperback | The Sigma Protocol |
| 2001 | Hardcover | The Sigma Protocol |
| 2001 | Paperback | The Sigma Protocol |
| 2001 | Hardcover | The Sigma Protocol |
| Perfect Paperback | The Sigma Protocol | |
| Paperback | The Sigma Protocol | |