Dyfyniad APA

Grigg, N. S. (2008). Total water management: Practices for a sustainable future. American Water Works Association.

Dyfyniad Arddull Chicago

Grigg, Neil S. Total Water Management: Practices for a Sustainable Future. Denver, Colo.: American Water Works Association, 2008.

Dyfyniad MLA

Grigg, Neil S. Total Water Management: Practices for a Sustainable Future. American Water Works Association, 2008.

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