MLA

McClintock, Walter, 1870-1949. 271. [Reproduction of a Painting of "Death Spirit" by Joseph Henry Sharp, 1906.]. Box 61, folder 3103. 1938. https://collections.library.yale.edu/catalog/2008762.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 61, folder 3103"])(1938)[271. [Reproduction of a Painting of "Death Spirit" by Joseph Henry Sharp, 1906.]]. https://collections.library.yale.edu/catalog/2008762.