Gaya APA

Duan, C. et al (2009). Recovery of metals from waste printed circuit boards by a mechanical method using a water medium . London: Elsevier B.V..

Gaya MLA

Duan, Chenlong. et al. "Recovery of metals from waste printed circuit boards by a mechanical method using a water medium". London: Elsevier B.V., 2009. e-journal.