Socio-economic analysis and planning :
Socio-economic analysis and planning : Critical choice of methodologies.
- Paris : UNESCO, 1986.
- 260 p. : il., fot., lamns.
- Socio-economic studies ; 12 .
9231023918
3.002.1: 338 =20 SOC No.12.
9231023918
3.002.1: 338 =20 SOC No.12.