Gardner, Eric F. Social relations and morale in small groups / by Eric F. Gardner and George G. Thompson. - New York : Appleton-Century-Crofts, c 1956. - ix, 312 p. : illus. ; 22 cm. - Century psychology series . Bibliography: p. 303-307. Subjects--Topical Terms: Social psychology.Interpersonal relations. Dewey Class. No.: 301.15 / GAS 1956