Dyfyniad APA

HAMMER, M. J. (2008). Water and wastewater technology. Pearson Prentice Hall.

Dyfyniad Arddull Chicago

HAMMER, Mark J. Water and Wastewater Technology. Pearson Prentice Hall, 2008.

Dyfyniad MLA

HAMMER, Mark J. Water and Wastewater Technology. Pearson Prentice Hall, 2008.

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