Cite

ALS to John Smith, Jr.; London

MLA

Wilson, John, 1785-1854. ALS to John Smith, Jr.; London. Box 1, folder 8. 1812 Feb 22. https://collections.library.yale.edu/catalog/2066833.

APA, 6th edition

Wilson, John, 1785-1854. (["Box 1, folder 8"])(1812 Feb 22)[ALS to John Smith, Jr.; London]. https://collections.library.yale.edu/catalog/2066833.