Notes for Cantos [XXXI-LI], Autograph notes and typescripts
MLA
Pound, Ezra, 1885-1972. Notes for Cantos [XXXI-LI], Autograph notes and typescripts. Box 72, folder 3246. n.d.. https://collections.library.yale.edu/catalog/16169383.
APA, 6th edition
Pound, Ezra, 1885-1972. (["Box 72, folder 3246"])(n.d.)[Notes for Cantos [XXXI-LI], Autograph notes and typescripts]. https://collections.library.yale.edu/catalog/16169383.