000 00335nam a2200121Ia 4500
008 140208s9999 xx 000 0 und d
044 _aU.S.A.
100 _aKarnok, Keith J., ed.
245 _aCrop Science. v.42.(3-4), 2002
_cedited by Keith J.Karnok
260 _bCSSA America
_a
_c2002
300 _av.42, 715.;27cm.
942 _2udc
_cP
999 _c34317
_d34317