Jeffers, Robinson and family
MLA
Luhan, Mabel Dodge, 1879-1962. Jeffers, Robinson and family. Box 1, folder 30. n.d.. https://collections.library.yale.edu/catalog/17209505.
APA, 6th edition
Luhan, Mabel Dodge, 1879-1962. (["Box 1, folder 30"])(n.d.)[Jeffers, Robinson and family]. https://collections.library.yale.edu/catalog/17209505.