MLA

Hersey, John, 1914-1993. My Petition for More Space, typescript and typescript (photocopy), printout, reviews and correspondence. Box 53. 1973. https://collections.library.yale.edu/catalog/15208990.

APA, 6th edition

Hersey, John, 1914-1993. (["Box 53"])(1973)[My Petition for More Space, typescript and typescript (photocopy), printout, reviews and correspondence]. https://collections.library.yale.edu/catalog/15208990.