MLA

Luhan, Mabel Dodge, 1879-1962. Los Gallos, Taos. Box 78, folder 2169-2173. 1933-50, n.d.. https://collections.library.yale.edu/catalog/16925367.

APA, 6th edition

Luhan, Mabel Dodge, 1879-1962. (["Box 78, folder 2169-2173"])(1933-50, n.d.)[Los Gallos, Taos]. https://collections.library.yale.edu/catalog/16925367.