APA (7th ed.) Citation

Wills, B. A., & Barley, R. W. (1986). Mineral Processing at a Crossroads: Problems and Prospects. Springer Netherlands.

Chicago Style (17th ed.) Citation

Wills, B. A., and R. W. Barley. Mineral Processing at a Crossroads: Problems and Prospects. Dordrecht: Springer Netherlands, 1986.

MLA (9th ed.) Citation

Wills, B. A., and R. W. Barley. Mineral Processing at a Crossroads: Problems and Prospects. Springer Netherlands, 1986.