Cite

231. [Pack Train Passing Through a Grassy Valley.]

MLA

McClintock, Walter, 1870-1949. 231. [Pack Train Passing Through a Grassy Valley.]. Box 61, folder 3060. 1938. https://collections.library.yale.edu/catalog/2008504.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 61, folder 3060"])(1938)[231. [Pack Train Passing Through a Grassy Valley.]]. https://collections.library.yale.edu/catalog/2008504.