Cite

SF-6. Red Monkey Flower.

MLA

McClintock, Walter, 1870-1949. SF-6. Red Monkey Flower.. Box 145, folder 7448. undated. https://collections.library.yale.edu/catalog/10453592.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 145, folder 7448"])(undated)[SF-6. Red Monkey Flower.]. https://collections.library.yale.edu/catalog/10453592.