Citazione Stile APA (7a Edizione)

(1981). Economics of environmental and: Natural resources policy. Westview Pr..

Citazione stile Chigago Style (17a edizione)

Economics of Environmental and: Natural Resources Policy. Bouldere, Colo.: Westview Pr., 1981.

Citatione MLA (9a ed.)

Economics of Environmental and: Natural Resources Policy. Westview Pr., 1981.