Cite

SF-167. Gentian.

MLA

McClintock, Walter, 1870-1949. SF-167. Gentian.. Box 145, folder 7607. undated. https://collections.library.yale.edu/catalog/10453752.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 145, folder 7607"])(undated)[SF-167. Gentian.]. https://collections.library.yale.edu/catalog/10453752.