McMahon, Glenda Chatterton, Ken Reciprocating inertia pumps Reciprocating inertia pumps WEDC;Pumps;Technical;Diagram;Wells;International and Development Communication 2019-05-02
    https://repository.lboro.ac.uk/articles/figure/Reciprocating_inertia_pumps/7959299
10.17028/rd.lboro.7959299.v1