000 00267nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aSPARKS [DONALD]
245 0 _aAdvances in agronomy
260 _cAcademic press
365 _b0
650 _aNIL
942 _cBK
999 _c102623
_d102623