Cite

658. [Horses on a Prairie.]

MLA

McClintock, Walter, 1870-1949. 658. [Horses on a Prairie.]. Box 64, folder 3383. 1939. https://collections.library.yale.edu/catalog/2009016.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 64, folder 3383"])(1939)[658. [Horses on a Prairie.]]. https://collections.library.yale.edu/catalog/2009016.