Cite

Armstrong, R. F., 7 items

MLA

Pratt, Richard Henry, 1840-1924. Armstrong, R. F., 7 items. Box 1, folder 10. 1900-01. https://collections.library.yale.edu/catalog/16701070.

APA, 6th edition

Pratt, Richard Henry, 1840-1924. (["Box 1, folder 10"])(1900-01)[Armstrong, R. F., 7 items]. https://collections.library.yale.edu/catalog/16701070.