Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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