Umbrella Rock on Point Lookout, Lookout Mountain postcard, undated

Chicago citation style
Umbrella Rock on Point Lookout, Lookout Mountain postcard, undated. 1901. Retrieved from the Digital Public Library of America, http://cdm16877.contentdm.oclc.org/cdm/ref/collection/p16877coll12/id/446. (Accessed September 23, 2019.)
APA citation style
(1901) Umbrella Rock on Point Lookout, Lookout Mountain postcard, undated. Retrieved from the Digital Public Library of America, http://cdm16877.contentdm.oclc.org/cdm/ref/collection/p16877coll12/id/446
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16877.contentdm.oclc.org/cdm/ref/collection/p16877coll12/id/446>.
Note: These citations are programmatically generated and may be incomplete.