Schachter, Stanley, 1922- The psychology of affiliation experimental studies of the sources of gregariousness. - Stanford, California Stanford University Press 1959 - 141 p. diagrs., tables. 23 cm. - Stanford studies in psychology, 1 . Bibliography: p. 135-138. LCCN: 59-007428 Subjects--Topical Terms: Interpersonal relationsSocial groups