APA Citation

Klima, R. E., & Sigmon, N. Cryptology: Classical and modern with maplets.

Chicago Style Citation

Klima, Richard E., and Neil Sigmon. Cryptology: Classical and Modern With Maplets.

MLA Citation

Klima, Richard E., and Neil Sigmon. Cryptology: Classical and Modern With Maplets.

Warning: These citations may not always be 100% accurate.