Cite

517a, 300b, 611c. [Beaver Cutting Down a Tree.]

MLA

McClintock, Walter, 1870-1949. 517a, 300b, 611c. [Beaver Cutting Down a Tree.]. Box 63, folder 3249. 1947. https://collections.library.yale.edu/catalog/2008812.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 63, folder 3249"])(1947)[517a, 300b, 611c. [Beaver Cutting Down a Tree.]]. https://collections.library.yale.edu/catalog/2008812.