Preston, Ralph Clausius, 1908- Teaching social studies in the elementary school / by Ralph C. Preston and Wayne L. Herman, Jr - 4th ed. - Rinehart and Winston, New York Holt 1974 - vi, 584 p. : ill,. ; 24 cm. Includes bibliographical references. ISBN: 0030855144 Subjects--Topical Terms: Social sciences--Study and teaching (Elementary)