MLA

Brodsky, Joseph, 1940-1996, Kline, George L. (George Louis), 1921-2014. Nazidanie, English translation by George Kline and Brodsky, drafts and proofs. Box 62 | 1358-1360. 1986-2000, undated. https://collections.library.yale.edu/catalog/17306083.

APA, 6th edition

Brodsky, Joseph, 1940-1996, & Kline, George L. (George Louis), 1921-2014. (["Box 62 | 1358-1360"])(1986-2000, undated)[Nazidanie, English translation by George Kline and Brodsky, drafts and proofs]. https://collections.library.yale.edu/catalog/17306083.