F827d. War Horse. Morning Eagle Leading War Horse.
MLA
McClintock, Walter, 1870-1949. F827d. War Horse. Morning Eagle Leading War Horse.. Box 139, folder 6779. 1908. https://collections.library.yale.edu/catalog/10452466.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 139, folder 6779"])(1908)[F827d. War Horse. Morning Eagle Leading War Horse.]. https://collections.library.yale.edu/catalog/10452466.