Canto II [beginning and end]
MLA
Bird, William, 1888-1963. Canto II [beginning and end]. Box 2, folder 69. n.d.. https://collections.library.yale.edu/catalog/16164959.
APA, 6th edition
Bird, William, 1888-1963. (["Box 2, folder 69"])(n.d.)[Canto II [beginning and end]]. https://collections.library.yale.edu/catalog/16164959.