TY  - BOOK
AU  - Wells,Donald T.
TI  - Environmental policy: a global perspective for the twenty-first century 
SN  - 0-13-400219-9
AV  - GE170 W45
PY  - 1996///
CY  - Uppper Saddle River, N. J.
PB  - Prentice-Hall
N1  - Incluye bibliografia
ER  -