MLA

Holtzman, Harry, 1912-1987. Passports, datebooks, address books, certificates and awards, postcards, and art exhibit brochures. Box 1. 1945-1987. https://collections.library.yale.edu/catalog/16624726.

APA, 6th edition

Holtzman, Harry, 1912-1987. (["Box 1"])(1945-1987)[Passports, datebooks, address books, certificates and awards, postcards, and art exhibit brochures]. https://collections.library.yale.edu/catalog/16624726.