MLA

Erdoes, Richard, 1912-2008. Sheep Herding, Canyon De Chelley, Close Up. Box 43 | Navajo People, Riders, Sheep Herders, Sand Painters, Working People, Etc.. 1969-1979, undated. https://collections.library.yale.edu/catalog/10251177.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 43 | Navajo People, Riders, Sheep Herders, Sand Painters, Working People, Etc."])(1969-1979, undated)[Sheep Herding, Canyon De Chelley, Close Up]. https://collections.library.yale.edu/catalog/10251177.