000 00322nam a2200133Ia 4500
008 160316s1980 xxu||||| |||| 00| 0 eng d
020 _a
100 _aRao, N.S. Subba
245 _aRecent Advances In Biological Nitrogen Fixation
250 _a1
260 _aLONDON
_bEDWARD ARNOLD
_c1980
300 _a486
700 _a
_a
999 _c23214
_d23214