00000cam a22000004a 4500 UP-1685594773861450447 Buklod 20070906152521.0 j|||||||||||||| | s| ||||||||||| 070906s1991 xx d r |||| u| 0205126332 (iLib)UPBAG-00000027566 DLC DLC DLC LB1584 E39 1991 LB 1584 E44 1991 Ellis, Arthur K. Teaching and learning elementary social studies Arthur K. Ellis. 4th ed. Boston Allyn and Bacon c1991. xxiii, 380 p. ill. 25 cm. Includes bibliographical references (p. 365-374) and index. Social sciences Study and teaching (Elementary) UPBAG UPBAG-MAIN LB 1584 E44 1991 Book