APA (7th ed.) Zitazioa
Tietenberg, T. (1988). Environmental and natural resource economics. Scott,Foresman.
Chicago Style (17th ed.) Zitazioa
Tietenberg, Tom. Environmental and Natural Resource Economics. Illinois: Scott,Foresman, 1988.
MLA (9th ed.) Zitazioa
Tietenberg, Tom. Environmental and Natural Resource Economics. Scott,Foresman, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.