Cite

908a. Going-to-the-Sun Mountain.

MLA

McClintock, Walter, 1870-1949. 908a. Going-to-the-Sun Mountain.. Box 68, folder 3714. undated. https://collections.library.yale.edu/catalog/2009892.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 68, folder 3714"])(undated)[908a. Going-to-the-Sun Mountain.]. https://collections.library.yale.edu/catalog/2009892.