Παραπομπή APA

Parr, A. (2011). Hydraulics and pneumatics: A technicians and engineers guide (3rd ed.). Elsevier.

Παραπομπή Chicago Style

Parr, Andrew. Hydraulics and Pneumatics: A Technicians and Engineers Guide. 3rd ed. Amsterdam: Elsevier, 2011.

Παραπομπή MLA

Parr, Andrew. Hydraulics and Pneumatics: A Technicians and Engineers Guide. 3rd ed. Elsevier, 2011.