Cite

F877. Trail to Sperry Glacier.

MLA

McClintock, Walter, 1870-1949. F877. Trail to Sperry Glacier.. Box 140, folder 6918. 1908. https://collections.library.yale.edu/catalog/10452605.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 140, folder 6918"])(1908)[F877. Trail to Sperry Glacier.]. https://collections.library.yale.edu/catalog/10452605.