00600nam a2200193Ia 450000100060000000300050000600500170001100800410002801000150006902000150008405000170009908200120011610000310012824500740015926000620023330000230029550400410031865000470035939891BIBL20160527200216.0710527s1971    ohua     b    00110 eng    a 78147054   a06750923960 aLB1530b.P57  a372.8/310aPloghoft, Milton E.2Local10aSocial science education in the elementary schoolcPloghoft Milton E.0 aColumbus, Ohio : Charles E Merrill Publishing Co.cc1971.  axii, 414 p., ills.  aIncludes bibliographical references. 0aSocial sciencexStudy and teaching.2Local