Kesler, S. E. (1994). Mineral resources of economics and the environment. Macmillan College Publishing.
Citazione stile Chigago Style (17a edizione)Kesler, Stephen E. Mineral Resources of Economics and the Environment. New York: Macmillan College Publishing, 1994.
Citatione MLA (9a ed.)Kesler, Stephen E. Mineral Resources of Economics and the Environment. Macmillan College Publishing, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.