Letter : [Julan Beck to] Oscar Lewenstein, New York
MLA
Beck, Julian, 1925-1985. Letter : [Julan Beck to] Oscar Lewenstein, New York. Box 113. 1971 September 29. https://collections.library.yale.edu/catalog/2056785.
APA, 6th edition
Beck, Julian, 1925-1985. (["Box 113"])(1971 September 29)[Letter : [Julan Beck to] Oscar Lewenstein, New York]. https://collections.library.yale.edu/catalog/2056785.