000 00326nam a2200121Ia 4500
008 170101s1976 xx 000 0 und d
082 _a589.704133 AME
100 _aAmerican Society of Agronomy
245 0 _aBiological Nitrogen fixation in Forage Livestock Systems
260 _c1976
300 _a127 p.
942 _2ddc
_cB
999 _c724516
_d724516