MLA

Stenzel, Franz (1906-1998). "Sacramento River, Cala. (Mt. Diablo in the Distance) looking down." Watercolor, 23.5 x 30.7 cm.. Box 1, folder 13. 1858 Mar. https://collections.library.yale.edu/catalog/10690896.

APA, 6th edition

Stenzel, Franz (1906-1998). (["Box 1, folder 13"])(1858 Mar)["Sacramento River, Cala. (Mt. Diablo in the Distance) looking down." Watercolor, 23.5 x 30.7 cm.]. https://collections.library.yale.edu/catalog/10690896.