MLA

McClintock, Walter, 1870-1949. G908a. Woman Assistant.. Box 113, folder 5293. 1909 Summer. https://collections.library.yale.edu/catalog/10451075.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 113, folder 5293"])(1909 Summer)[G908a. Woman Assistant.]. https://collections.library.yale.edu/catalog/10451075.