000 00434nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a576 S8
100 _a"Subba Rao, N S"
245 0 _aRecent Advances in Biological Nitrogen Fixation
250 _a\\197900ENGGPSX
260 _aOxford Publishing Company
260 _b1979
260 _cBombay
300 _a486 p
500 _aincludes index and biblioraphy
942 _cBK
999 _c39770
_d39770