SF-299. Hemlock Forest Illuminated by Sunlight. Old Trees. Forest Floor of Moss and Humus.
MLA
McClintock, Walter, 1870-1949. SF-299. Hemlock Forest Illuminated by Sunlight. Old Trees. Forest Floor of Moss and Humus.. Box 146, folder 7739. undated. https://collections.library.yale.edu/catalog/10453884.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 146, folder 7739"])(undated)[SF-299. Hemlock Forest Illuminated by Sunlight. Old Trees. Forest Floor of Moss and Humus.]. https://collections.library.yale.edu/catalog/10453884.