000			00319nam a2200121Ia 4500
008			140208s9999 xx 000 0 und d
020			_a0011183X
044			_aU.S.A.
245			_aCrop Science. v.15, 1975 _c
260			_bCrop Science Society of America _aMadison _c1975
300			_av.15, 918 p.; 24cm.
942			_2udc _cP
999			_c6220 _d6220