APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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