Cite

EW with Wilson, Helen M. K.

MLA

Wilson, Edmund, 1895-1972. EW with Wilson, Helen M. K.. Box 198, folder 4818-4819. n.d.. https://collections.library.yale.edu/catalog/2008060.

APA, 6th edition

Wilson, Edmund, 1895-1972. (["Box 198, folder 4818-4819"])(n.d.)[EW with Wilson, Helen M. K.]. https://collections.library.yale.edu/catalog/2008060.