000 00420nam a2200181Ia 4500
001 17111
008 240126s9999||||xx |||||||||||||| ||und||
020 _cUSD 29.50
037 _cUSD 29.50
082 _a574.133 SPR
100 _aSprent, Janet I.
_911934
245 0 _aBiology of anitrogen - fixing orghnisms
260 _aLondon
260 _bMcgraw -Hill
260 _c1979
300 _axiv,196p.
942 _cBK
999 _c17111
_d17111