000			00509nam a2200157Ia 4500
008			140208s9999 xx 000 0 und d
044			_aU.S.A.
080			_a633.156 518 2 OS7A
100			_aOsteen, Craig
245			_aApplying the economic threshold concept to control lesion nematodes on corn _cCraig Osteen ...[et al.].
260			_bNational Technical Information Service _aSpringfield _c1982
300			_aiv, 30 p.; 28cm.
700			_aDowler, Clyde C.
700			_aJohnson, A.W.
942			_2udc _cGB
999			_c17471 _d17471