MLA

Trudeau, G. B., 1948-. Sunday originals. Box 172 (Oversize). 1988. https://collections.library.yale.edu/catalog/2053574.

APA, 6th edition

Trudeau, G. B., 1948-. (["Box 172 (Oversize)"])(1988)[Sunday originals]. https://collections.library.yale.edu/catalog/2053574.