Letter of 1872 August 21

Chicago citation style
Owen, Richard, 1804-1892. Letter of 1872 August 21. 1872-08-21. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll18/id/1507. (Accessed September 20, 2018.)
APA citation style
Owen, Richard, 1804-1892, (1872-08-21) Letter of 1872 August 21. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll18/id/1507
MLA citation style
Owen, Richard, 1804-1892. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll18/id/1507>.
Note: These citations are programmatically generated and may be incomplete.