Cite

Sweezy, Paul M.

MLA

Matthiessen, F. O. (Francis Otto), 1902-1950. Sweezy, Paul M.. Box 4. 1946-1949. https://collections.library.yale.edu/catalog/32239871.

APA, 6th edition

Matthiessen, F. O. (Francis Otto), 1902-1950. (["Box 4"])(1946-1949)[Sweezy, Paul M.]. https://collections.library.yale.edu/catalog/32239871.