Cite

Sears, Sarah C.

MLA

Stieglitz, Alfred, 1864-1946. Sears, Sarah C.. Box 43, folder 1039. n.d.. https://collections.library.yale.edu/catalog/32188945.

APA, 6th edition

Stieglitz, Alfred, 1864-1946. (["Box 43, folder 1039"])(n.d.)[Sears, Sarah C.]. https://collections.library.yale.edu/catalog/32188945.