Secret diplomacy; espionage and cryptography, 1500-1815
By: [by] James Westfall Thompson and Saul K. Padover.
Contributors: Padover, Saul Kussiel, 1905-
Publisher: F. Ungar Pub. Co.
Published: 1963
Place of publication: New York
Language: eng
Number of pages: 290
Subjects: Diplomacy -- History.; Secret service.; Cryptography -- History.; Europe -- Politics and government.
Notes: "Appendix: Cryptography": p. 253-263.

Bibliography: p. 265-282.