Editions of The Sigma protocol

662 pages

English language

Published Jan. 8, 2001 by St. Martin's Paperbacks.

535 pages

English language

Published Jan. 8, 2001 by St. Martin's Press.

535 pages

English language

Published Jan. 8, 2001 by St. Martin's Press.

840 pages

English language

Published Jan. 8, 2002 by Thorndike Press.

662 pages

English language

Published Jan. 8, 2002 by St. Martin's Paperbacks.

535 pages

English language

Published Jan. 8, 2001 by BCA.