MLA

Huntington, Ellsworth, 1876-1947. Canada. Box 74, folder 2877. 1935. https://collections.library.yale.edu/catalog/32505887.

APA, 6th edition

Huntington, Ellsworth, 1876-1947. (["Box 74, folder 2877"])(1935)[Canada]. https://collections.library.yale.edu/catalog/32505887.