MLA

Preneel, Bart, Takeo Kanade, and Josef Kittler. Progress In Cryptology – Africacrypt 2009. Springer Berlin Heidelberg, 2009.

APA

Preneel, B., Kanade, T., & Kittler, J. (2009). Progress in Cryptology – AFRICACRYPT 2009. Springer Berlin Heidelberg.

Chicago

Preneel, Bart, Takeo Kanade, and Josef Kittler. Progress In Cryptology – AFRICACRYPT 2009. : Springer Berlin Heidelberg, 2009.