MLA

Pratt, Richard Henry, 1840-1924. Carlisle School students, 8 items. Box 23, folder 729. 1878-81. https://collections.library.yale.edu/catalog/2001750.

APA, 6th edition

Pratt, Richard Henry, 1840-1924. (["Box 23, folder 729"])(1878-81)[Carlisle School students, 8 items]. https://collections.library.yale.edu/catalog/2001750.