Man operates machine

Chicago citation style
Unknown. Man operates machine. 1977-11-20. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/1369. (Accessed December 11, 2018.)
APA citation style
Unknown, (1977-11-20) Man operates machine. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/1369
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/1369>.
Note: These citations are programmatically generated and may be incomplete.