An introduction to social psychology / / by William McDougall.

MLA

McDougall, William. An Introduction to Social Psychology. Twenthieth edition, enlarged London: Methuen & Co, 1925.

APA

McDougall, W. (1925). An introduction to social psychology. Twenthieth edition, enlarged London: Methuen & Co.

Chicago

McDougall, William An Introduction to Social Psychology. Twenthieth edition, enlarged London: Methuen & Co, 1925.