MLA

Wesley, Dorothy Porter, 1905-1995. University of Pennsylvania. Box 152a, folder 1285. 1968. https://collections.library.yale.edu/catalog/31961545.

APA, 6th edition

Wesley, Dorothy Porter, 1905-1995. (["Box 152a, folder 1285"])(1968)[University of Pennsylvania]. https://collections.library.yale.edu/catalog/31961545.