000 00374nam a2200109Ia 4500
100 _aNational Council Of Educational Research And Training
942 _cBK
245 _aTeacher's guide for environmental studies : part II (class IV )
260 _aNatioanal Council Of Educational Research And Training, New Delhi
_c1980
082 _a372.190083 N.C.E.R.T.
300 _avii: 80
999 _c64609
_d64609