Ekstrand, Bruce R. Principles and meanings of psychology : readings / Bruce R. Ek strand , Lyle E. Bourne. - Hinsdale, Ill. : Dryden Press, c1974. - ix, 511 p. : ill. ; 28 cm. Includes bibliographical references ISBN: 0030890780 LCCN: 73-014287 Subjects--Topical Terms: Psychology. Dewey Class. No.: 150/.8