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041 _aENG
082 _a589.95
_bSUB
100 _aN. S. Subba Rao
245 0 _aRecent advances in biological nitrogen fixation
260 _aNew Delhi
_bOxford and IBH Publishing Co
_c1979
300 _a486p
546 _aENGLISH
942 _cBK
999 _c14500
_d14500