MLA

Bahlmann, Anna Catherine, 1849-1916. "Rodier". Box 1, folder 17. 1915. https://collections.library.yale.edu/catalog/2109432.

APA, 6th edition

Bahlmann, Anna Catherine, 1849-1916. (["Box 1, folder 17"])(1915)["Rodier"]. https://collections.library.yale.edu/catalog/2109432.