Cite

Kroll, Leon

MLA

Stein, Leo, 1872-1947. Kroll, Leon. Box 4, folder 97. 1926, 1936, n.d.. https://collections.library.yale.edu/catalog/17155343.

APA, 6th edition

Stein, Leo, 1872-1947. (["Box 4, folder 97"])(1926, 1936, n.d.)[Kroll, Leon]. https://collections.library.yale.edu/catalog/17155343.