MLA

Freeman, Walter, 1895-1972. 2149. Slides on ice. Box 5, folder 167. 1912-1916. https://collections.library.yale.edu/catalog/10011038.

APA, 6th edition

Freeman, Walter, 1895-1972. (["Box 5, folder 167"])(1912-1916)[2149. Slides on ice]. https://collections.library.yale.edu/catalog/10011038.