Estimating commuters' willingness-to-pay for improved air quality considering their exposure to suspended particulate matter (SPM)

Bibliográfalaš dieđut
Váldodahkki: Fabian, Herbert G.
Materiálatiipa: Oahppočájánas
Giella:eaŋgalasgiella
Almmustuhtton: 2002.
Fáttát: