Pollak, F. (1980). Pump users' handbook (2a. ed.). Gulf.
Citación estilo ChicagoPollak, F. Pump Users' Handbook. 2a. ed. Houston: Gulf, 1980.
Cita MLAPollak, F. Pump Users' Handbook. 2a. ed. Gulf, 1980.
Warning: These citations may not always be 100% accurate.