MLA

Davison, Frederick Trubee, 1896-1974. Sturtevant, Albert D.. Box 16, folder 250. [ca. 1917-1918]; 1924. https://collections.library.yale.edu/catalog/10014581.

APA, 6th edition

Davison, Frederick Trubee, 1896-1974. (["Box 16, folder 250"])([ca. 1917-1918]; 1924)[Sturtevant, Albert D.]. https://collections.library.yale.edu/catalog/10014581.