APA (7th ed.) Zitazioa

HJALTE, K. (1977). Enviromental policy and welfare economics. C.U.P.

Chicago Style (17th ed.) Zitazioa

HJALTE, Krister. Enviromental Policy and Welfare Economics. Cambridge: C.U.P, 1977.

MLA (9th ed.) Zitazioa

HJALTE, Krister. Enviromental Policy and Welfare Economics. C.U.P, 1977.