000			00366nam a2200145Ia 4500
008			180612s9999||||xx |||||||||||||| ||und||
020			_a0-08-036198-6
041			_aen
082			_a630.251'5
100			_aYoung Peter,C.
245		0	_aConcise Encyclopedia of Environmental Systems
260			_aOxford _bPergamon press _c1993
300			_axiv,769p.
942			_cPR
999			_c45143 _d45143