TY  - BOOK
AU  - Ehrlich, Paul R.
TI  - The science of ecology
SN  - 0023317000
U1  - 577 EHR 
PY  - 1987///
CY  - New York
PB  - Macmillan Publication Company
KW  -  
KW  - Public - India
KW  - finance
ER  -