000 00331nam a2200133Ia 4500
008 150321s9999 xx 000 0 und d
080 _aR631(058)
_bBRA-A
245 _aadvances in agronomy
260 _c1970
_aNew York
_bAcademic Press
300 p _axi,462p.
650 _aAgronomy
700 _aBrady, N. C.
942 _cBK
_2udc
999 _c12655
_d12655