Gaya APA

Systems, T, T. (1974). Pump. Operating Principles and Maintenance of Positive Displacement and Centrifugal Pump (1st ed). Illinois: TPC Training System.

Gaya MLA

Systems, TPC, Training. "Pump. Operating Principles and Maintenance of Positive Displacement and Centrifugal Pump". 1st ed Illinois: TPC Training System, 1974. Printed.