Dreikurs, Rudolf 1897-1972 Maintaining sanity in the classroom : illustrated teaching techniques / Rudolf Dreikurs, Bernice Bronia Grunwald, Floy C. Pepper. - New York: Harper & Row, 1971. - 338 p. ; 23 cm. Includes index. ISBN: 0060417587 Subjects--Topical Terms: Teaching Dewey Class. No.: 371.102