TY  - GEN
AU  - Trivedy, R K
AU  - Goel, P K
AU  - Trisal, C L
TI  - Practical Methods in Ecology and Environmental Science
T2  - Series in Methodology 2
U1  - 577 
PY  - 1987///
CY  - Karad
PB  - Enviro Media Publications
ER  -