Cita APA (7th ed.)

Anders, G. (1980). The Economics of minerals extraction. Praeger.

Cita Chicago (17th ed.)

Anders, Gerhard. The Economics of Minerals Extraction. New York: Praeger, 1980.

Cita MLA (9th ed.)

Anders, Gerhard. The Economics of Minerals Extraction. Praeger, 1980.