TY - BOOK AU - Dunfee,Maxime AU - Sagl,Helen L. ED - Holt, Rinehart and Winston TI - Social studies through problem solving: a challenge to elementary school teachers U1 - 372.83 23 PY - 1966///. CY - New York: PB - Holt, Rinehart and Winston, KW - Social sciences KW - Study and teaching (Elementary) N1 - Includes bibliography p. 371-373 and index ER -