000 00327nam a2200133Ia 4500
008 150321s9999 xx 000 0 und d
080 _aR
_b631(058)
245 _aadvances in agronomy
260 _c1973
_aNew York
_bAcademic Press
300 p _axi, 400p.
650 _aAgronomy
700 _aBrady, N. C.
942 _cBK
_2udc
999 _c12672
_d12672