000			00387nam a2200133Ia 4500
008			170101s1975 xx 000 0 und d
082			_a632.7 S99S
245		0	_aSterility principle for insect control 1974
260			_bVienna _c1975
300			_a622p
650			_aINSECTS, INJURIOUS AND BENEFICIAL -- CONTROL
653			_aINSECTS, INJURIOUS AND BENEFICIAL -- CONT
942			_2ddc _cB
999			_c67943 _d67943