Cite

"Approach"

MLA

Erdoes, Richard, 1912-2008. "Approach". Box 49. 1975, 1981, undated. https://collections.library.yale.edu/catalog/2079690.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 49"])(1975, 1981, undated)["Approach"]. https://collections.library.yale.edu/catalog/2079690.