Cite

[Postcard] 1928 Apr 2, Grand Canyon, Ariz. [to] F.S. Dellenbaugh, New York City

MLA

Fred Harvey (Firm). [Postcard] 1928 Apr 2, Grand Canyon, Ariz. [to] F.S. Dellenbaugh, New York City. Box 2 | Folder 67. 1928. https://collections.library.yale.edu/catalog/2017917.

APA, 6th edition

Fred Harvey (Firm). (["Box 2 | Folder 67"])(1928)[[Postcard] 1928 Apr 2, Grand Canyon, Ariz. [to] F.S. Dellenbaugh, New York City]. https://collections.library.yale.edu/catalog/2017917.