Pollak, F. (1980). Pump users' handbook (2a. ed.). Gulf.
Tohutoru Kātū Chicago (17th ed.)Pollak, F. Pump Users' Handbook. 2a. ed. Houston: Gulf, 1980.
Tohutoro MLA (9th ed.)Pollak, F. Pump Users' Handbook. 2a. ed. Gulf, 1980.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.