TY  - BOOK
ED  -  United Nations Education Programme.
TI  -  Geographic information systems for environment and development : : inaugural dissertation
PY  - 1992///
CY  -  Zurich : 
PB  -  United Nations Education Programme, 
KW  -  Geographic information systems
KW  -  Environmental impact assessment
KW  -  Development economics
N1  -  Includes bibliographical references
ER  -