Eggert, R. G., & Olin, J. M. (1994). Mining and the environment: International perspectives on public policy. Washington, DC.: Resources for the Future.
Παραπομπή Chicago StyleEggert, Roderick G., and John M. Olin. Mining and the Environment: International Perspectives On Public Policy. Washington, DC.: Resources for the Future, 1994.
Παραπομπή MLAEggert, Roderick G., and John M. Olin. Mining and the Environment: International Perspectives On Public Policy. Washington, DC.: Resources for the Future, 1994.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.