TY  - BOOK
AU  - Ahmad,Yusuf J.
ED  - United Nations Environment Programme.
TI  - Analysing the options: cost-benefit analysis in differing economic systems 
SN  - 9280710435
PY  - 1982///
CY  - Nairobi
PB  - United Nations Environment Programme
KW  - Cost-benefit analysis
KW  - Environmental policy
ER  -