Notebook 33: [Cantos: Background Reading (De Mailla, Vols. 5-9) and drafts]
MLA
Pound, Ezra, 1885-1972. Notebook 33: [Cantos: Background Reading (De Mailla, Vols. 5-9) and drafts]. Box 115, folder 4901. [1937-38]. https://collections.library.yale.edu/catalog/17122807.
APA, 6th edition
Pound, Ezra, 1885-1972. (["Box 115, folder 4901"])([1937-38])[Notebook 33: [Cantos: Background Reading (De Mailla, Vols. 5-9) and drafts]]. https://collections.library.yale.edu/catalog/17122807.