Cite

[Four landscape paintings attributed to Kitty Stieglitz], watercolor and tempera on paper]

MLA

Stieglitz, Alfred, 1864-1946. [Four landscape paintings attributed to Kitty Stieglitz], watercolor and tempera on paper]. Box 160, folder 2926. 1910, n.d.. https://collections.library.yale.edu/catalog/16057244.

APA, 6th edition

Stieglitz, Alfred, 1864-1946. (["Box 160, folder 2926"])(1910, n.d.)[[Four landscape paintings attributed to Kitty Stieglitz], watercolor and tempera on paper]]. https://collections.library.yale.edu/catalog/16057244.