TY  - GEN
ED  - Worldwatch Institute
TI  - State of the world: 2007our urban future 
U1  - 338.92 
PY  - 2007///
CY  - London
PB  - W.W.Norton & Co.
KW  - Urban areas : Conservation
KW  - Urbanisation
KW  - Sustainable development
ER  -