MLA

Pratt, Richard Henry, 1840-1924. Indian prisoners, 3 items. Box 23a, folder 745. 1875. https://collections.library.yale.edu/catalog/2001127.

APA, 6th edition

Pratt, Richard Henry, 1840-1924. (["Box 23a, folder 745"])(1875)[Indian prisoners, 3 items]. https://collections.library.yale.edu/catalog/2001127.