Cite

SF-336. Limber Pine. Prairies Near Rockies.

MLA

McClintock, Walter, 1870-1949. SF-336. Limber Pine. Prairies Near Rockies.. Box 146, folder 7775. undated. https://collections.library.yale.edu/catalog/10453921.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 146, folder 7775"])(undated)[SF-336. Limber Pine. Prairies Near Rockies.]. https://collections.library.yale.edu/catalog/10453921.