APA (7th ed.) Citation

Chapman, P. F., & Roberts, F. (1983). Metal resources and energy. Butteworths.

Chicago Style (17th ed.) Citation

Chapman, P. F., and F. Roberts. Metal Resources and Energy. Londres: Butteworths, 1983.

MLA (9th ed.) Citation

Chapman, P. F., and F. Roberts. Metal Resources and Energy. Butteworths, 1983.