MLA

Audubon, John James, 1785-1851. From VGA. Box 5, folder 235. 1833. https://collections.library.yale.edu/catalog/17281598.

APA, 6th edition

Audubon, John James, 1785-1851. (["Box 5, folder 235"])(1833)[From VGA]. https://collections.library.yale.edu/catalog/17281598.