Cita APA

Biggs, N. L., & Norman L. Biggs. (1998). Discrete mathematics. Oxford: Clarendon Press.

Chicago Style Citation

Biggs, Norman L., i Norman L. Biggs. Discrete Mathematics. Oxford: Clarendon Press, 1998.

Cita MLA

Biggs, Norman L., i Norman L. Biggs. Discrete Mathematics. Oxford: Clarendon Press, 1998.

Atenció: Aquestes cites poden no estar 100% correctes.