Bernac, Pierre
MLA
Koch, Frederick R. (Frederick Robinson). Bernac, Pierre. Box 48, folder 969-974. [1940]-62, n.d.. https://collections.library.yale.edu/catalog/16601840.
APA, 6th edition
Koch, Frederick R. (Frederick Robinson). (["Box 48, folder 969-974"])([1940]-62, n.d.)[Bernac, Pierre]. https://collections.library.yale.edu/catalog/16601840.