Cita APA (7a ed.)

(2009). Groups, complexity, cryptology. Heldermann Verlag.

Cita Chicago Style (17a ed.)

Groups, Complexity, Cryptology. Lemgo, Germany: Heldermann Verlag, 2009.

Cita MLA (9a ed.)

Groups, Complexity, Cryptology. Heldermann Verlag, 2009.