Cite

Powell, Dilys

MLA

Van Thal, Herbert, 1904-1983. Powell, Dilys. Box 1, folder 99. n.d.. https://collections.library.yale.edu/catalog/16546003.

APA, 6th edition

Van Thal, Herbert, 1904-1983. (["Box 1, folder 99"])(n.d.)[Powell, Dilys]. https://collections.library.yale.edu/catalog/16546003.