Poulenc, Francis
MLA
Nabokov, Nicolas, 1903-1978. Poulenc, Francis. Box 1, folder 32. undated. https://collections.library.yale.edu/catalog/16627588.
APA, 6th edition
Nabokov, Nicolas, 1903-1978. (["Box 1, folder 32"])(undated)[Poulenc, Francis]. https://collections.library.yale.edu/catalog/16627588.