Cummington Press
MLA
Williams, William Carlos, 1883-1963. Cummington Press. Box 4, folder 148-149. 1943-1950. https://collections.library.yale.edu/catalog/17049466.
APA, 6th edition
Williams, William Carlos, 1883-1963. (["Box 4, folder 148-149"])(1943-1950)[Cummington Press]. https://collections.library.yale.edu/catalog/17049466.