TY  - BOOK
AU  - Smith,Thomas M.
AU  - Smith, Robert Leo
TI  - Elements of ecology 
SN  - 9789332536692
U1  - 574.5 
PY  - 2015///
CY  - New Delhi
PB  - Pearson
KW  - Biology
KW  - Ecology
N1  - Include bibliography & index
ER  -