TY  - BOOK
AU  - W. J. Broughton
TI  - Nitrogen fixation. Vol 1 Ecology 
SN  - 0-19-854540-1
U1  - 589.95 
PY  - 1981///
CY  - Oxford
PB  - Clarendon Press
N1  - W. J. Broughton: Nitrogen fixation. Vol 1 Ecology.  Oxford.  Clarendon Press, 1981. 0-19-854540-1--(589.95BRO)
ER  -