TY  - BOOK
AU  - Jha, M.N.
TI  - Studies on sustainability of soil fertility in natural forest ecosystem of doon valley
U1  - Th 631.422 21st ed.
PY  - 2002///
CY  - Dehradun: 
PB  - Forest Research Institute, 
KW  - Forests and forestry- Doon Valley
KW  - Soil fertility
N1  - Thesis- (M.Sc)- Forest Research Institute, 2002
ER  -