Cite

"Uxmal, Pyramid and My Old Pix"

MLA

Erdoes, Richard, 1912-2008. "Uxmal, Pyramid and My Old Pix". Box 44. 1980, undated. https://collections.library.yale.edu/catalog/10254091.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 44"])(1980, undated)["Uxmal, Pyramid and My Old Pix"]. https://collections.library.yale.edu/catalog/10254091.