GS-91. Lodge in Snow.
MLA
McClintock, Walter, 1870-1949. GS-91. Lodge in Snow.. Box 122, folder 5693. undated. https://collections.library.yale.edu/catalog/10453411.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 122, folder 5693"])(undated)[GS-91. Lodge in Snow.]. https://collections.library.yale.edu/catalog/10453411.