MLA

Erdoes, Richard, 1912-2008. Parmelee Rodeo. Box 52 | Plains Dances, Rodeos, Old Photographs. 1970-1980, undated. https://collections.library.yale.edu/catalog/2081677.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 52 | Plains Dances, Rodeos, Old Photographs"])(1970-1980, undated)[Parmelee Rodeo]. https://collections.library.yale.edu/catalog/2081677.