Cite

[Self portrait on envelope]

MLA

Brodsky, Joseph, 1940-1996. [Self portrait on envelope]. Box 133 | Folder 2985. undated. https://collections.library.yale.edu/catalog/2107224.

APA, 6th edition

Brodsky, Joseph, 1940-1996. (["Box 133 | Folder 2985"])(undated)[[Self portrait on envelope]]. https://collections.library.yale.edu/catalog/2107224.