APA

Ewer B. C., . (1929). Social psychology. New York: The Macmillan Co.

Chicago

Ewer Bernard C, . 1929. Social psychology. New York: The Macmillan Co.

Harvard

Ewer B. C., . (1929). Social psychology. New York: The Macmillan Co.

MLA

Ewer Bernard C, . Social psychology. New York: The Macmillan Co. 1929.