Boeing 747 assembly plant showing four 747s under construction, ca. 1969

Chicago citation style
Unknown. Boeing 747 assembly plant showing four 747s under construction, ca. 1969. ca. 1969. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/imlsmohai/id/6995. (Accessed July 18, 2018.)
APA citation style
Unknown, (ca. 1969) Boeing 747 assembly plant showing four 747s under construction, ca. 1969. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/imlsmohai/id/6995
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/imlsmohai/id/6995>.
Note: These citations are programmatically generated and may be incomplete.