TY  - BOOK
AU  - Sprent,Janet I.
TI  - The biology of nitrogen-fixing organisms
T2  - European plant biology series
SN  - 0070840873 :
U1  - 589 
PY  - 1979///
CY  - London, New York
PB  - McGraw-Hill
KW  - Nitrogen-fixing microorganisms
KW  - Nitrogen
ER  -