APA (7th ed.) Zitazioa

Pollak, F. (1980). Pump users' handbook (2a. ed.). Gulf.

Chicago Style (17th ed.) Zitazioa

Pollak, F. Pump Users' Handbook. 2a. ed. Houston: Gulf, 1980.

MLA (9th ed.) Zitazioa

Pollak, F. Pump Users' Handbook. 2a. ed. Gulf, 1980.