Cita APA (7a ed.)

Biggs, N. L. (1989). Discrete mathematics (2a ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Biggs, Norman L. Discrete Mathematics. 2a ed. Oxford: Oxford University Press, 1989.

Cita MLA (9a ed.)

Biggs, Norman L. Discrete Mathematics. 2a ed. Oxford University Press, 1989.