Cite

"Columbia R. above Cascades - looking down." Watercolor, 23.5 x 30.6 cm.

MLA

Stenzel, Franz (1906-1998). "Columbia R. above Cascades - looking down." Watercolor, 23.5 x 30.6 cm.. Box 3, folder 32. 1857 Jul. https://collections.library.yale.edu/catalog/10692044.

APA, 6th edition

Stenzel, Franz (1906-1998). (["Box 3, folder 32"])(1857 Jul)["Columbia R. above Cascades - looking down." Watercolor, 23.5 x 30.6 cm.]. https://collections.library.yale.edu/catalog/10692044.