TY  - BOOK
AU  - Layard,P.R.G.
TI  - Cost-benefit analysis: selected readings 
SN  - 0140806458
PY  - 1972///
CY  - Harmondsworth
PB  - Penguin
KW  - Cost effectiveness
KW  - Addresses, essays, lectures
N1  - Bibl. - Index
ER  -