TY  - BOOK
AU  - Gordon,J.C.
AU  - Wheeler,C.T.
TI  - Biological nitrogen fixation in forest ecosystems: foundations and applications 
PY  - 1983///
CY  - The Hague
PB  - Martinus Nijhoff
KW  - Nitrogen
KW  - Fixation
KW  - Forest ecology
KW  - Forest management
ER  -