00414nam a2200181Ia 4500003000400000005001700004008004100021020001800062040000700080041000800087082001500095100001800110245005000128260001700178300000900195650001200204700001600216OSt20251029113332.0250729s2004    xx            000 0 und d  a9788131770221  cAL  aeng  a500.7 KUMC  aAnilkumar S S  aContent based methodology of teaching science  aMysorec2004  a280p  aScience  aPradeep K R