Dyfyniad APA

Ravenscroft, P., Brammer, H., & Richards, K. (2009). Arsenic Pollution: A Global Synthesis. Wiley-Blackwell.

Dyfyniad Arddull Chicago

Ravenscroft, Peter, Hugh Brammer, and Keith Richards. Arsenic Pollution: A Global Synthesis. Chichester: Wiley-Blackwell, 2009.

Dyfyniad MLA

Ravenscroft, Peter, et al. Arsenic Pollution: A Global Synthesis. Wiley-Blackwell, 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.