000 00316nam a2200121Ia 4500
008 170101s1981 xx 000 0 und d
082 _a630 AME
100 _aAmerican Society of Agronomy
245 0 _aAdvances in Agronomy vol. 34
260 _aNew York
_bAcedemic Press
_c1981
300 _a485 p
942 _2ddc
_cB
999 _c792066
_d792066