[Pumping air]

Chicago citation style
Heslop, J. Malan, 1923-2011. [Pumping air]. 1945. Retrieved from the Digital Public Library of America, http://utah-primoprod.hosted.exlibrisgroup.com/primo_library/libweb/action/dlDisplay.do?vid=MWDL&afterPDS=true&docId=digcoll_byu_12JMHes/1928. (Accessed November 19, 2018.)
APA citation style
Heslop, J. Malan, 1923-2011, (1945) [Pumping air]. Retrieved from the Digital Public Library of America, http://utah-primoprod.hosted.exlibrisgroup.com/primo_library/libweb/action/dlDisplay.do?vid=MWDL&afterPDS=true&docId=digcoll_byu_12JMHes/1928
MLA citation style
Heslop, J. Malan, 1923-2011. Retrieved from the Digital Public Library of America <http://utah-primoprod.hosted.exlibrisgroup.com/primo_library/libweb/action/dlDisplay.do?vid=MWDL&afterPDS=true&docId=digcoll_byu_12JMHes/1928>.
Note: These citations are programmatically generated and may be incomplete.