MLA

Asch, Sholem, 1880-1957. Advertisements. Box 9, folder 100. n.d.. https://collections.library.yale.edu/catalog/17341061.

APA, 6th edition

Asch, Sholem, 1880-1957. (["Box 9, folder 100"])(n.d.)[Advertisements]. https://collections.library.yale.edu/catalog/17341061.