Parr, A. (2011). Hydraulics and pneumatics: A technicians and engineers guide (3rd ed.). Elsevier.
शिकागो स्टाइल उद्धरणParr, Andrew. Hydraulics and Pneumatics: A Technicians and Engineers Guide. 3rd ed. Amsterdam: Elsevier, 2011.
एमएलए उद्धरणParr, Andrew. Hydraulics and Pneumatics: A Technicians and Engineers Guide. 3rd ed. Elsevier, 2011.
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