Cite

Y-903. [Bighorn Sheep.]

MLA

McClintock, Walter, 1870-1949. Y-903. [Bighorn Sheep.]. Box 74, folder 4323. 1905 1941. https://collections.library.yale.edu/catalog/2009855.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 74, folder 4323"])(1905 1941)[Y-903. [Bighorn Sheep.]]. https://collections.library.yale.edu/catalog/2009855.