Cite

Lippmann, Walter and Helen at Mt. Desert, Maine

MLA

Lippmann, Walter, 1889-1974. Lippmann, Walter and Helen at Mt. Desert, Maine. Box 254, folder 155. [1939?]. https://collections.library.yale.edu/catalog/10009168.

APA, 6th edition

Lippmann, Walter, 1889-1974. (["Box 254, folder 155"])([1939?])[Lippmann, Walter and Helen at Mt. Desert, Maine]. https://collections.library.yale.edu/catalog/10009168.