APA (7th ed.) Zitazioa

(1979). Coal surface mining: Impacts of reclamation. Westview Pr.

Chicago Style (17th ed.) Zitazioa

Coal Surface Mining: Impacts of Reclamation. Boulder, Colo.: Westview Pr, 1979.

MLA (9th ed.) Zitazioa

Coal Surface Mining: Impacts of Reclamation. Westview Pr, 1979.