Y-1813. Method of Working Scrapers.
MLA
McClintock, Walter, 1870-1949. Y-1813. Method of Working Scrapers.. Box 76, folder 4497. 1905 1941. https://collections.library.yale.edu/catalog/2010208.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 76, folder 4497"])(1905 1941)[Y-1813. Method of Working Scrapers.]. https://collections.library.yale.edu/catalog/2010208.