MLA

Thayer, Scofield, 1889-1982. Galerie Drouet. Box 69, folder 1862. 1923. https://collections.library.yale.edu/catalog/17142341.

APA, 6th edition

Thayer, Scofield, 1889-1982. (["Box 69, folder 1862"])(1923)[Galerie Drouet]. https://collections.library.yale.edu/catalog/17142341.