Cite

121a. [Valleys of Conifer Forest.]

MLA

McClintock, Walter, 1870-1949. 121a. [Valleys of Conifer Forest.]. Box 71, folder 3996. 1905 1941. https://collections.library.yale.edu/catalog/2010609.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 71, folder 3996"])(1905 1941)[121a. [Valleys of Conifer Forest.]]. https://collections.library.yale.edu/catalog/2010609.