TY  - BOOK
AU  - Clayton Anthony M H
AU  -  Radcliffe Nicholas J
TI  - Sustainability :  A systems approach   
T2  - Institute for Policy Analysis and Development
U1  - X:(G:55), N6 
PY  - 1996///
CY  - London
PB  - Earthscan U. K.        
KW  - Environmental Economics
ER  -