MLA

Trudeau, G. B., 1948-. Sunday originals. Box 173 (Oversize). 1990. https://collections.library.yale.edu/catalog/2053575.

APA, 6th edition

Trudeau, G. B., 1948-. (["Box 173 (Oversize)"])(1990)[Sunday originals]. https://collections.library.yale.edu/catalog/2053575.