Cite

Lewis, Wyndham. Publicity material

MLA

Pound, Ezra, 1885-1972. Lewis, Wyndham. Publicity material. Box 37, folder 861. n.d.. https://collections.library.yale.edu/catalog/2030452.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 37, folder 861"])(n.d.)[Lewis, Wyndham. Publicity material]. https://collections.library.yale.edu/catalog/2030452.