HJALTE, K. (1977). Enviromental policy and welfare economics. C.U.P.
Cita Chicago (17th ed.)HJALTE, Krister. Enviromental Policy and Welfare Economics. Cambridge: C.U.P, 1977.
Cita MLA (9th ed.)HJALTE, Krister. Enviromental Policy and Welfare Economics. C.U.P, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.