MLA

Nugent, Bruce, 1906-1987. Garber, Eric. Box 6. 1981-1985. https://collections.library.yale.edu/catalog/16814001.

APA, 6th edition

Nugent, Bruce, 1906-1987. (["Box 6"])(1981-1985)[Garber, Eric]. https://collections.library.yale.edu/catalog/16814001.