MLA

Trudeau, G. B., 1948-. Doonesbury. Box 1976. 1976 November 10. https://collections.library.yale.edu/catalog/2052816.

APA, 6th edition

Trudeau, G. B., 1948-. (["Box 1976"])(1976 November 10)[Doonesbury]. https://collections.library.yale.edu/catalog/2052816.