Seal
MLA
Stein, Gertrude, 1874-1946. Seal. Box 163, folder 4304. n.d.. https://collections.library.yale.edu/catalog/2005947.
APA, 6th edition
Stein, Gertrude, 1874-1946. (["Box 163, folder 4304"])(n.d.)[Seal]. https://collections.library.yale.edu/catalog/2005947.