00459nam a2200157Ia 4500008004100000020000500041082001600046100000500062245009800067260005300165300000800218650002400226650001900250700001500269700001700284140316s9999    xx            000 0 und d  a  a577bDWI/CH  a  aCharter for Nature : Basic material for school teachers to prepare outdoor exercises in india  aNew DelhibDepartment of ocean developmentc1990  a222  aforest conservation  amarine ecology  aBhatt,V.S.  aDwivedi,S.N.