APA (7th ed.) Zitazioa

Jerry L.Holechek. (2003). Natural resources: Ecology, economics, and policy (2nd ed.). Prentice Hall.

Chicago Style (17th ed.) Zitazioa

Jerry L.Holechek. Natural Resources: Ecology, Economics, and Policy. 2nd ed. Upper saddle River, NJ.: Prentice Hall, 2003.

MLA (9th ed.) Zitazioa

Jerry L.Holechek. Natural Resources: Ecology, Economics, and Policy. 2nd ed. Prentice Hall, 2003.