Madsen, K. B. Theories of motivation; a comparative study of modern theories of motivation. [Translated from the Danish by Mrs. and Mr. Arne Hyldkrog] - 2d ed. - Cleveland, H. Allen, 1961. - A Series of books in psychology . Bibliography: p. [345]-353. LCCN: 62002694 /L Subjects--Topical Terms: Motivation (Psychology) LC Class. No.: BF683 / .M313 1961 Dewey Class. No.: 159.4