000			00331nam a2200133Ia 4500
008			130223s9999 xx 000 0 und d
245			_aPesticides their implications for agriculture
260			_aOttawa
260			_c1973
300			_a37 p.
440			_aNo. 1518; Canada Department of
901			_pS20019
942			_cB _2udc
999			_c129591 _d129591