Economics of outdoor recreation
Economics of outdoor recreation
by Marion Clawson and Jack L. Knetsch.
- Baltimore Johns Hopkins Press for the Resources for the Future cop. 1966.
- 328 s.
0801801214 (inb.) 0801813026 (hft.) 9780801801211 (inb.) 9780801813023 (hft.)
Friluftsliv--Fèorenta staterna.
0801801214 (inb.) 0801813026 (hft.) 9780801801211 (inb.) 9780801813023 (hft.)
Friluftsliv--Fèorenta staterna.