MLA

Trudeau, G. B., 1948-. Sunday originals. Box 168 (Oversize). 1977. https://collections.library.yale.edu/catalog/2053569.

APA, 6th edition

Trudeau, G. B., 1948-. (["Box 168 (Oversize)"])(1977)[Sunday originals]. https://collections.library.yale.edu/catalog/2053569.