"Cascades - Columbia R. below the Rapids." Watercolor, 23.6 x 30.6 cm.
MLA
Stenzel, Franz. "Cascades - Columbia R. below the Rapids." Watercolor, 23.6 x 30.6 Cm. 1857. https://collections.library.yale.edu/catalog/10701497.
APA, 6th edition
Stenzel, F. (1857). "Cascades - Columbia R. below the Rapids." Watercolor, 23.6 x 30.6 cm. https://collections.library.yale.edu/catalog/10701497.