000 00300nam a2200121Ia 4500
008 170101s2012 xx 000 0 und d
082 _a630 SPA
100 _aSparks D.L.
245 0 _aAdvances In Agronomy Vol. 115
260 _aLondon
_bAcademic Press
_c2012
300 _a358 P
942 _2ddc
_cB
999 _c1512816
_d1512816