MLA

Bahlmann, Anna Catherine, 1849-1916. Sachet. Box 7, folder 264. 1875. https://collections.library.yale.edu/catalog/17204970.

APA, 6th edition

Bahlmann, Anna Catherine, 1849-1916. (["Box 7, folder 264"])(1875)[Sachet]. https://collections.library.yale.edu/catalog/17204970.