[Certificate of identification in the U.S. Army Transportation Service : Chief White Elks]
MLA
Dept, United States. War. [Certificate of Identification in the U.S. Army Transportation Service : Chief White Elks]. 1917. https://collections.library.yale.edu/catalog/10254733.
APA, 6th edition
Dept, U. S. W. (1917). [Certificate of identification in the U.S. Army Transportation Service : Chief White Elks] [Government records, Identification photographs]. https://collections.library.yale.edu/catalog/10254733.