TY  - BOOK
AU  - Postgate, J. R.
TI  - Nitrogen fixation
T2  - The Institute of Biology's Studies in biology ; no. 92
SN  - 0713126876
AV  - QR113 .P67 1978
U1  - 546.711 19
PY  - 1978///
CY  - London
PB  - E. Arnold
KW  - Nitrogen-fixing microorganisms
KW  - Nitrogen cycle
KW  - Root-tubercles
N1  - Bibliography: p. [68]
ER  -