MLA

Wilson, Edmund, 1895-1972. Nabokov, Vladimir. Box 51, folder 1359-1363. 1952-72, n.d.. https://collections.library.yale.edu/catalog/12032004.

APA, 6th edition

Wilson, Edmund, 1895-1972. (["Box 51, folder 1359-1363"])(1952-72, n.d.)[Nabokov, Vladimir]. https://collections.library.yale.edu/catalog/12032004.