MLA

DeCusati, Emiddio, Keller, Deane, 1901-1992. Norton Canfield portrait. 1961. https://collections.library.yale.edu/catalog/16787415.

APA, 6th edition

DeCusati, Emiddio, & Keller, Deane, 1901-1992. (1961)[Norton Canfield portrait]. https://collections.library.yale.edu/catalog/16787415.