Secret diplomacy; espionage and cryptography, 1500-1815
By: [by] James Westfall Thompson and Saul K. Padover.
Contributors: Padover, Saul Kussiel, 1905- joint author.
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: Bibliography: p. 265-282.
"Appendix: Cryptography": p. 253-263.