TY  - BOOK
AU  - Materassi, R. P .M
AU  - Vivcenrini, M.
TI  - Nitrogen Fixation
SN  - 0792314107
AV  - QR 89.7 .I59 1990 
PY  - 1990///
CY  - Dordrecht
PB  - Kluwer Academic Publisher
KW  - Nitrogen Fixation
KW  - Nitrogen Fixation Organisms
ER  -