000 00280nam a2200121Ia 4500
100 _aV K Rao, R S Reddy
020 _a81-7169-136-5
942 _cBK
245 _aEnvironmental education
260 _aCommomwealth, New Delhi
_c1997
082 _a301.307 Rao/Red
300 _av,248p
999 _c34670
_d34670