MLA

Bernays, Edward L., 1891-1995, New York World's Fair (1939-1940). The New York world's fair, a symbol for democracy : address of Edward L. Bernays, member of World's Fair Committee of the Merechants' Association of New York at luncheon under auspices of the Association's Members' Council at Hotel Pennsylvania / April 7, 1937. 1937]. https://collections.library.yale.edu/catalog/11915254.

APA, 6th edition

Bernays, Edward L., 1891-1995, & New York World's Fair (1939-1940). (1937])[The New York world's fair, a symbol for democracy : address of Edward L. Bernays, member of World's Fair Committee of the Merechants' Association of New York at luncheon under auspices of the Association's Members' Council at Hotel Pennsylvania / April 7, 1937]. https://collections.library.yale.edu/catalog/11915254.