MLA

Archiquette, John, 1847-1923. Manuscript fragments. Box 2, folder 72. undated. https://collections.library.yale.edu/catalog/16715423.

APA, 6th edition

Archiquette, John, 1847-1923. (["Box 2, folder 72"])(undated)[Manuscript fragments]. https://collections.library.yale.edu/catalog/16715423.