TY  - BOOK
AU  - Sprent, Janet I
AU  - Sprent, Petor
TI  - Nitrogen fixing organisms: pune and applied aspects: by Janet, I Sprent, Petor Sprent
SN  - 041234680x.
U1  - 589.90133 
PY  - 1990///
CY  - London
PB  - Chapman
KW  - Nitrogen - Fixation
KW  - Nitrogen - Fixing microorganisms
ER  -