MLA

Erdoes, Richard, 1912-2008. Bayou Ecology. Box 78 | Kenneth Florida, Long Boat Key, New Orleans. undated. https://collections.library.yale.edu/catalog/2100433.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 78 | Kenneth Florida, Long Boat Key, New Orleans"])(undated)[Bayou Ecology]. https://collections.library.yale.edu/catalog/2100433.