Dyfyniad APA

Gleick, P. H. (2009). The World's water 2008-2009: The biennial report on freshwater resources. Washington: Oisland Press.

Dyfyniad Arddull Chicago

Gleick, Peter H. The World's Water 2008-2009: The Biennial Report On Freshwater Resources. Washington: Oisland Press, 2009.

Dyfyniad MLA

Gleick, Peter H. The World's Water 2008-2009: The Biennial Report On Freshwater Resources. Washington: Oisland Press, 2009.

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