TY  - BOOK
TI  - State of the world 1991: a Worldwatch Institute report on progress toward a sustainable society  
SN  - 0393307336
U1  - 363.7 19
PY  - 1991///
CY  - New York
PB  - W.W. Norton and Company
KW  - Resources
KW  - Spines
N1  - Bibliography : p. 189-246
N2  - Environment Management
ER  -