MLA

Erdoes, Richard, 1912-2008. N.Y.- CT Seashore. Box 81 | New England, Westport, Water birds, Boston, Marine Life, VT, Maine, Bar Harbor, Etc.. 1969-1975, undated. https://collections.library.yale.edu/catalog/2102952.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 81 | New England, Westport, Water birds, Boston, Marine Life, VT, Maine, Bar Harbor, Etc."])(1969-1975, undated)[N.Y.- CT Seashore]. https://collections.library.yale.edu/catalog/2102952.