Standing, in trench coat and hat
MLA
Dreier, Katherine S. (Katherine Sophie), 1877-1952. Standing, in trench coat and hat. Box 73, folder 1890. n.d.. https://collections.library.yale.edu/catalog/2041730.
APA, 6th edition
Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 73, folder 1890"])(n.d.)[Standing, in trench coat and hat]. https://collections.library.yale.edu/catalog/2041730.