Cite

"Ball Court and Monument Valley Ruins"

MLA

Erdoes, Richard, 1912-2008. "Ball Court and Monument Valley Ruins". Box 48. 1975-1991, undated. https://collections.library.yale.edu/catalog/2079465.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 48"])(1975-1991, undated)["Ball Court and Monument Valley Ruins"]. https://collections.library.yale.edu/catalog/2079465.