APA (7th ed.) Zitazioa

(1999). Valuing recreation and the environment: Revealed preference methods in theory and practice. Edward Elgar.

Chicago Style (17th ed.) Zitazioa

Valuing Recreation and the Environment: Revealed Preference Methods in Theory and Practice. Cheltenham: Edward Elgar, 1999.

MLA (9th ed.) Zitazioa

Valuing Recreation and the Environment: Revealed Preference Methods in Theory and Practice. Edward Elgar, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.