Cite

Pollock, William J., 2 items; Pound, Thaddeus C., 6 items

MLA

Pratt, Richard Henry, 1840-1924. Pollock, William J., 2 items; Pound, Thaddeus C., 6 items. Box 7, folder 250. 1882, 1880-1881. https://collections.library.yale.edu/catalog/32323893.

APA, 6th edition

Pratt, Richard Henry, 1840-1924. (["Box 7, folder 250"])(1882, 1880-1881)[Pollock, William J., 2 items; Pound, Thaddeus C., 6 items]. https://collections.library.yale.edu/catalog/32323893.