TY  - BOOK
AU  - Thompson,James Westfall
AU  - Padover,Saul Kussiel
TI  - Secret diplomacy: a record of espionage and double-dealing, 1500-1815 
U1  - 341.70903 23
PY  - 1937///
CY  - London
PB  - Jarrolds
KW  - Diplomacy
KW  - History
KW  - Secret service
KW  - Cryptography
KW  - Europe
KW  - Politics and government
N1  - "Appendix: Cryptography": p. 253-263; Bibliography: p. 265-278. Includes index
ER  -