Switch Engine
MLA
S. Hutchinson. "Switch Engine." Troup County Archives. 1939-04-01, http://cdm17413.contentdm.oclc.org/cdm/ref/collection/imagecoll/id/14366.
APA
S. Hutchinson (1939-04-01). Switch Engine. Retrieved from http://cdm17413.contentdm.oclc.org/cdm/ref/collection/imagecoll/id/14366
Chicago
S. Hutchinson. "Switch Engine." 1939-04-01. August 7, 2025. http://cdm17413.contentdm.oclc.org/cdm/ref/collection/imagecoll/id/14366.