TY  - BOOK
AU  - Tiwari,S.C
TI  - Concepts of modern ecology 
SN  - 81-211-0088-7
U1  - 577 
PY  - 1992///
CY  - Dehradun
PB  - Bishen Singh, Mahendrapal Singh
KW  - Ecology
KW  - Life sciences
N1  - Includes index and bibliography
ER  -