Cite

SF-269. Pink Lady Slipper.

MLA

McClintock, Walter, 1870-1949. SF-269. Pink Lady Slipper.. Box 146, folder 7709. undated. https://collections.library.yale.edu/catalog/10453854.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 146, folder 7709"])(undated)[SF-269. Pink Lady Slipper.]. https://collections.library.yale.edu/catalog/10453854.