Na-Nd General
MLA
Gabo, Naum, 1890-1977. Na-Nd General. Box 20. 1939-1980. https://collections.library.yale.edu/catalog/2055182.
APA, 6th edition
Gabo, Naum, 1890-1977. (["Box 20"])(1939-1980)[Na-Nd General]. https://collections.library.yale.edu/catalog/2055182.