Aerial photograph of Knoxville airport

Chicago citation style
Aerial photograph of Knoxville airport. 1939-02-12. Retrieved from the Digital Public Library of America, http://cdm15138.contentdm.oclc.org/cdm/ref/collection/p15138coll19/id/383. (Accessed October 15, 2018.)
APA citation style
(1939-02-12) Aerial photograph of Knoxville airport. Retrieved from the Digital Public Library of America, http://cdm15138.contentdm.oclc.org/cdm/ref/collection/p15138coll19/id/383
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm15138.contentdm.oclc.org/cdm/ref/collection/p15138coll19/id/383>.
Note: These citations are programmatically generated and may be incomplete.