Παραπομπή APA

Hammack, R. (2011). Handbook of product graphs (2nd.). CRC.

Παραπομπή Chicago Style

Hammack, Richard. Handbook of Product Graphs. 2nd. London: CRC, 2011.

Παραπομπή MLA

Hammack, Richard. Handbook of Product Graphs. 2nd. CRC, 2011.