000 00304nam a2200097Ia 4500
100 _aAyanaba A & Dart P J Eds
245 _aBiological Nitrogen Fixation in Farming Systems of Tropics : Symposium Papers
260 _bJohn Wiley & Sons, N'York
082 _aJ:1:41p,N75/N77/B16154
300 _app 377; 24*16
999 _c34739
_d34739