MLA

O'Neill, Eugene, 1888-1953. Wearing "American Line" sweater. Box 108, folder 1810. [ca. 1911]. https://collections.library.yale.edu/catalog/2005736.

APA, 6th edition

O'Neill, Eugene, 1888-1953. (["Box 108, folder 1810"])([ca. 1911])[Wearing "American Line" sweater]. https://collections.library.yale.edu/catalog/2005736.