APA استشهاد

Chetwynd, A., & Diggle, P. (2001). Discrete mathematics. Butterworth/heinemann.

استشهاد بنمط شيكاغو

Chetwynd, A., و P. Diggle. Discrete Mathematics. Delhi: Butterworth/heinemann, 2001.

MLA استشهاد

Chetwynd, A., و P. Diggle. Discrete Mathematics. Butterworth/heinemann, 2001.