"S" General
MLA
Steinberg, Saul, 1914-1999. "S" General. Box 41, folder 749-751 | Box 42, folder 752-762 | Box 43, folder 763-768 | Box 405, folder 5358. 1946-1998, undated. https://collections.library.yale.edu/catalog/10544436.
APA, 6th edition
Steinberg, Saul, 1914-1999. (["Box 41, folder 749-751 | Box 42, folder 752-762 | Box 43, folder 763-768 | Box 405, folder 5358"])(1946-1998, undated)["S" General]. https://collections.library.yale.edu/catalog/10544436.