563c. Snow Shape.
MLA
McClintock, Walter, 1870-1949. 563c. Snow Shape.. Box 73, folder 4202. 1905 1941. https://collections.library.yale.edu/catalog/2010866.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 73, folder 4202"])(1905 1941)[563c. Snow Shape.]. https://collections.library.yale.edu/catalog/2010866.