APA (7th ed.) Citation

Koblitz, N. (1994). A Course in Number Theory and Cryptography (Second edition.). Springer New York.

Chicago Style (17th ed.) Citation

Koblitz, Neal. A Course in Number Theory and Cryptography. Second edition. New York, NY: Springer New York, 1994.

MLA (9th ed.) Citation

Koblitz, Neal. A Course in Number Theory and Cryptography. Second edition. Springer New York, 1994.