000			00352nam a2200133Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
041			_aen
082			_a333.7
100			_aTHE OPEN UNIVERSITY
245		0	_aTechnology,Society And Environment
260			_aColombo _bThe Open University Of Sri La _cnka Pub 1990
300			_a135 page
942			_cLL
999			_c26077 _d26077