MLA

Luhan, Mabel Dodge, 1879-1962. Snapshots. Box 67, folder 1815-1823. 1929-46, n.d.. https://collections.library.yale.edu/catalog/16925365.

APA, 6th edition

Luhan, Mabel Dodge, 1879-1962. (["Box 67, folder 1815-1823"])(1929-46, n.d.)[Snapshots]. https://collections.library.yale.edu/catalog/16925365.