MLA

Pratt, N. J., MD (Old Saybrook, CT). Pharmaceutical kit. Box 061. late 19th - early 20th century. https://collections.library.yale.edu/catalog/17318811.

APA, 6th edition

Pratt, N. J., MD (Old Saybrook, CT). (["Box 061"])(late 19th - early 20th century)[Pharmaceutical kit]. https://collections.library.yale.edu/catalog/17318811.