000 00599nam a2200169Ia 4500
008 220204s9999 xx 000 0 und d
082 _a579(06)
_bSYM
245 0 _aMicrobes and biological productivity: Twenty first symposiyum of the society for general microbiology held at University college London, April 1971
260 _aCambridge
_bCambridge University
_c1971
490 _aSymposia of society for general microbiology 21
650 _aMicrobes
650 _aMicrobial disease
650 _aMicrobial productivity
650 _aMicrobiology
650 _aNitrogen fixation
942 _cBK
999 _c24083
_d24083