Cite

"20 Sonnets"

MLA

Kline, George L. (George Louis), 1921-2014. "20 Sonnets". Box 2, folder 103. circa 1965-2000. https://collections.library.yale.edu/catalog/16603946.

APA, 6th edition

Kline, George L. (George Louis), 1921-2014. (["Box 2, folder 103"])(circa 1965-2000)["20 Sonnets"]. https://collections.library.yale.edu/catalog/16603946.