1. Military Cryptanalysis: Simpler Varieties of Aperiodic Substitution Systems (Cryptographic Series)
by Friedman, William F. 
Price: USD 65.00
Dealer: Alibris, Maxwell's House of Books via Alibris
Description: Aegean Park Pr 1993 Soft cover Very Good A beautiful clean crisp uncracked softcover copy in very good condition, former owners name stamped on textblock, else unmarked. 

2. Military Cryptanalysis: Simpler Varieties of Aperiodic Substitution Systems Cryptographic Series
by Friedman William F. 
Price: USD 65.00
Dealer: Biblio, Maxwell's House of Books
Description: Aegean Park Pr. A beautiful clean crisp uncracked softcover copy in very good condition, former owners name stamped on textblock, else unmarked. . Very Good. Soft cover. Date: 1993. 1993. Aegean Park Pr ISBN 0894121960 9780894121968 [US]