Dyfyniad APA

(2001). Upgrading water treatment plants. London: Spon.

Dyfyniad Arddull Chicago

Upgrading Water Treatment Plants. London: Spon, 2001.

Dyfyniad MLA

Upgrading Water Treatment Plants. London: Spon, 2001.

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