The Sigma Protocol
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Author: Robert Ludlum.
- Publisher: St. Martin's Paperbacks
- Pages: 672
- Publication Date: 2002-10-13
- Edition: First Edition
- Binding: Mass Market Paperback
- MSRP: 7.99
- ISBN13: 9780312982515
- ISBN: 0312982518
- Language: en
- Store Location: Drama Paperback
- "Book cover image may be different than what appears on the actual book."