Παραπομπή σε μορφή APA (7η εκδ.)

Wills, B. A., & Barley, R. W. Mineral Processing at a Crossroads: Problems and Prospects. Springer International Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wills, Barry Alan, και R. W. Barley. Mineral Processing at a Crossroads: Problems and Prospects. Cham: Springer International Publishing.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wills, Barry Alan, και R. W. Barley. Mineral Processing at a Crossroads: Problems and Prospects. Springer International Publishing.