TY  - BOOK
AU  - Sprent, Janet I.
AU  - Sprent, Peter
TI  - Nitrogen fixing organisms
SN  - 0412346907
PY  - 1990///
CY  - London, New York, Tokyo [et al.]
PB  - Chapman & Hall
KW  - Plantes
KW  - AmÃ©lioration gÃ©nÃ©tique
KW  - GÃ©nÃ©tique vÃ©gÃ©tale
KW  - 581.3
ER  -