TY  - BOOK
ED  -  United Nations.
TI  -  Earth summit agenda 21 : : the United Nations programme of action f rom Rio
U1  -  333.72 EAR 
PY  - 1992///
CY  -  New York : 
PB  -  United Nations, 
KW  -  Sustainable development
KW  -  Conservation of natural resources
ER  -