Shaffer, Laurance Frederic, 1903- Psychology / by Laurance F. Shaffer, B. von Haller Gilmer, and Ma x Schoen. - New York : Harper, [c1940]. - xii p. 1 l., 521 p. : ill., col. pl., diagrs. ; 22 cm. "First edition" "Suggested readings and references": p. 474-498. Subjects--Topical Terms: Psychology. Dewey Class. No.: 150 SHA