APA-referens (7:e uppl.)
Wills, B. A. Mineral Processing Technology: An Introduction to the Practical Aspects of ore Treatment and Mineral Recovery (6a edición.). Butterworth-Heinemann.
Chicago-referens (17:e uppl.)
Wills, Barry A. Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 6a edición. Oxford, Inglaterra: Butterworth-Heinemann.
MLA-referens (9:e uppl.)
Wills, Barry A. Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 6a edición. Butterworth-Heinemann.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.