00682nam a2200205Ia 4500001000700000003000500007005001700012008004100029020001500070050002400085082001200109100003400121245009100155250001200246260004800258300002400306650005200330700005000382700004400432169330BIBL20160527184429.0691202s1974    nyua     b    00110 eng    a00309153920 aLB1585.3b.B55 1974  a372.3/510aBlough, Glenn Orlando.2Local10aElementary school science and how to teach itcby Glenn O. Blough and Julius Schwartz.  a5th ed.0 aNew YorkbHolt, Rinehart and Winstonc1974.  axviii, 532 p.bill. 0aSciencexStudy and teaching (Elementary)2Local10aSchwartz, Juliusd1907-ejoint author.2Local10aMarcuccio, Phyllisejoint author2Local