Cite

"Lichens"

MLA

Erdoes, Richard, 1912-2008. "Lichens". Box 86. 1972-1987, undated. https://collections.library.yale.edu/catalog/2106029.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 86"])(1972-1987, undated)["Lichens"]. https://collections.library.yale.edu/catalog/2106029.