TY  - BOOK
AU  - AHMAD YUSUF J
TI  - ANALYSING THE OPTIONS : ENVIRONMENTAL COST BENEFIT ANALYSIS IN DIFFERING ECONOMIC SYSTEMS
SN  - 9280710435
U1  - 333.7 
PY  - 1992///
CY  - NAIROBI
PB  - UNITED NATIONS ENVIRONMENT PROGRAMME
ER  -