TY  - BOOK
ED  - Stacey, Gary 
ED  - Burris,H. Robert
ED  -  Evans J.  Harold
TI  - Biological Nitorgen fixation. 
SN  - 0412024217
U1  - 589.90133 
PY  - 1992///
CY  - New york
PB  - Chapman & Hall
KW  - Nitrogen Fixation
KW  - Fixation of Nitrogen
KW  - Biochemical Cycles
KW  - Nitrogen
KW  - Fixation
ER  -