000			00363nam a2200145Ia 4500
008			130223s9999 xx 000 0 und d
100			_aSpencer, E.Y.
245			_aGuide to the chemicals used in crop protection
260			_aOttawa
260			_c1968
300			_a483 p.
440			_aNo. 1093; Canada Department of
901			_pS21644
942			_cB _2udc
999			_c124322 _d124322