Bernard, W. S. (1972). Immigrants and ethnicity: ten years of changing thought: An analysis based on the special seminars of the American Immigration and Citizenship Conference, 1960-1970. New York: American Immigration and Citizenship Conference.

Bernard, William Spencer. Immigrants and Ethnicity: Ten Years of Changing Thought: An Analysis Based On the Special Seminars of the American Immigration and Citizenship Conference, 1960-1970. New York: American Immigration and Citizenship Conference, 1972.

Bernard, William Spencer. Immigrants and Ethnicity: Ten Years of Changing Thought: An Analysis Based On the Special Seminars of the American Immigration and Citizenship Conference, 1960-1970. New York: American Immigration and Citizenship Conference, 1972.