MLA

Fischlin, Marc; Katzenbeisser, Stefan, and Stefan Katzenbeisser. Number Theory and Cryptography. Springer Berlin Heidelberg, 2013.

APA

Fischlin, S., & Katzenbeisser, S. (2013). Number Theory and Cryptography. Springer Berlin Heidelberg.

Chicago

Fischlin, Marc; Katzenbeisser, Stefan, and Stefan Katzenbeisser. Number Theory and Cryptography. : Springer Berlin Heidelberg, 2013.