Beasley, Albert Jr. (July 1990), Fluid Power(PDF), United States Navy, p. 6-3, NAVEDTRA 14105, archived from the original(PDF) on 2019-12-06, retrieved 2016-06-19
Beasley, Albert Jr. (July 1990), Fluid Power(PDF), United States Navy, p. 6-3, NAVEDTRA 14105, archived from the original(PDF) on 2019-12-06, retrieved 2016-06-19