TY  - BOOK
AU  - Sprent,Janet I.
AU  - Sprent,Peter
AU  - Sprent,Janet I.
TI  - Nitrogen fixing organisms: pure and applied aspects 
SN  - 041234680X (hbk.)
AV  - QR 89.7 .S7 1990
U1  - 589.90133 20
PY  - 1990///
CY  - London
PB  - Chapman and Hall
KW  - Nitrogen-fixing microorganisms
KW  - Nitrogen
KW  - Fixation
N1  - First edition published under the title: Biology of nitrogen-fixing organisms in 1979
ER  -