APA (7th ed.) Citation

Morgan, S. S. (1948). Opinions and attitudes in the twentieth century (4th ed.). Ronald Press Co..

Chicago Style (17th ed.) Citation

Morgan, Stewart S. Opinions and Attitudes in the Twentieth Century. 4th ed. New York: Ronald Press Co., 1948.

MLA (9th ed.) Citation

Morgan, Stewart S. Opinions and Attitudes in the Twentieth Century. 4th ed. Ronald Press Co., 1948.