Stein, Leo - with friends
MLA
Stein, Leo, 1872-1947. Stein, Leo - with friends. Box 14, folder 360. n.d.. https://collections.library.yale.edu/catalog/2065219.
APA, 6th edition
Stein, Leo, 1872-1947. (["Box 14, folder 360"])(n.d.)[Stein, Leo - with friends]. https://collections.library.yale.edu/catalog/2065219.