TY  - BOOK
AU  - Stewart,W.D.P.
ED  - International Biological Programme.
TI  - Nitrogen fixation by free-living micro-organisms
SN  - 0521207088
PY  - 1975///
CY  - Cambridge, Eng., New York
PB  - Cambridge University Press
N1  - "Papers presented at an IBP synthesis meeting on nitrogen fixation held in Edinburgh in September 1973, together with contributions submitted by other[s]."
ER  -