000			00305 a2200133 4500
080			_a301.3(063) _bS 94 P
245	1		_aProceedings
260			_aAhamedabad _bVikram A. Sarabhai Community Centre _c1971
650			_aEnvironment
650			_aStudent
100			_a _d
300			_a52 pp.
901			_a118244
999			_c19975 _d19975