Cite

Haas, Robert Bartlett

MLA

Stein, Gertrude, 1874-1946. Haas, Robert Bartlett. Box 136, folder 3139. 1946-49, n.d.. https://collections.library.yale.edu/catalog/17105790.

APA, 6th edition

Stein, Gertrude, 1874-1946. (["Box 136, folder 3139"])(1946-49, n.d.)[Haas, Robert Bartlett]. https://collections.library.yale.edu/catalog/17105790.