Letter from [John Muir] to David G[ilrye] Muir, 1911 May 9

Chicago citation style
John Muir. Letter from [John Muir] to David G[ilrye] Muir, 1911 May 9. 1911 May 9. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt429033wz. (Accessed December 12, 2018.)
APA citation style
John Muir, (1911 May 9) Letter from [John Muir] to David G[ilrye] Muir, 1911 May 9. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt429033wz
MLA citation style
John Muir. Retrieved from the Digital Public Library of America <http://ark.cdlib.org/ark:/13030/kt429033wz>.
Note: These citations are programmatically generated and may be incomplete.