Cite

SF-66. Mountain Flowers.

MLA

McClintock, Walter, 1870-1949. SF-66. Mountain Flowers.. Box 145, folder 7508. undated. https://collections.library.yale.edu/catalog/10453651.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 145, folder 7508"])(undated)[SF-66. Mountain Flowers.]. https://collections.library.yale.edu/catalog/10453651.