Letter from Warren Gregory to John Muir, 1900 Mar 23

Chicago citation style
Warren Gregory. Letter from Warren Gregory to John Muir, 1900 Mar 23. 1900 Mar 23. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt2h4nf0h4. (Accessed December 14, 2018.)
APA citation style
Warren Gregory, (1900 Mar 23) Letter from Warren Gregory to John Muir, 1900 Mar 23. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt2h4nf0h4
MLA citation style
Warren Gregory. Retrieved from the Digital Public Library of America <http://ark.cdlib.org/ark:/13030/kt2h4nf0h4>.
Note: These citations are programmatically generated and may be incomplete.