TY  - BOOK
AU  - Tisdell,C.A.
TI  - Economics of environmental conservation: economics for environmental 
SN  - 0444890750 
U1  - 333.7 20
PY  - 1991///
CY  - New York
PB  - Elsevier Science Pub. Co.
KW  - Economic development
N1  - Includes index
ER  -