000			00317nam a2200133Ia 4500
008			180612s9999||||xx |||||||||||||| ||und||
041			_aen
082			_a628.50154
100			_aBAIRD, Colin.
245		0	_aEnvironmental Chemistry
260			_aNew York. _bW.H.Freeman& co. _c1953
300			_a894.8113
942			_cPR
999			_c50426 _d50426