Gaya APA

Cheremisinoff, N, P., Cheremisinoff, P, N. (1992). Pumps and pumping operations (1992). : New Jersey: Prentice Hall,.

Gaya MLA

Cheremisinoff, Nicholas, P., Cheremisinoff, Paul, N. "Pumps and pumping operations". 1992 : New Jersey: Prentice Hall,, 1992. Text.