TY  - BOOK
AU  - Andelson,Robert V.
TI  - Commons without tragedy : : protecting the environment from overpop ulation, a new approach / 
U1  - MISR 333.7 COM 
PY  - 1991///
CY  - London : 
PB  - Sheppard-Walwyn, 
KW  - Environmental policy
ER  -