MLA

Baker, Aleta B. (Aleta Blanche), 1880-1943. Captive Amid the Astral. Box 1. https://collections.library.yale.edu/catalog/17353888.

APA, 6th edition

Baker, Aleta B. (Aleta Blanche), 1880-1943. (["Box 1"])[Captive Amid the Astral]. https://collections.library.yale.edu/catalog/17353888.