Cite

Swartwout, Samuel to W. J. Duane[?]

MLA

Audubon, John James, 1785-1851. Swartwout, Samuel to W. J. Duane[?]. Box 7, folder 397. 1833 Sep 23. https://collections.library.yale.edu/catalog/16445238.

APA, 6th edition

Audubon, John James, 1785-1851. (["Box 7, folder 397"])(1833 Sep 23)[Swartwout, Samuel to W. J. Duane[?]]. https://collections.library.yale.edu/catalog/16445238.