"John D. Strong Papers, 1938-1986.," Special Collections & University Archives, UMass Amherst Libraries, http://scua.library.umass.edu/umarmot/strong-john-d/ (accessed 07/20/2015)
John A. Sanderson, "John Donovan Strong" Physics Today, March 1993, page 102, http://scitation.aip.org/content/aip/magazine/physicstoday/article/46/3/10.1063/1.2808855 (accessed 07/20/2015)