Dyfyniad APA

World health Organization UNICEF. (2000). Global water supply and sanitation assessment 2000 report. World HealthOrganization.

Dyfyniad Arddull Chicago

World health Organization UNICEF. Global Water Supply and Sanitation Assessment 2000 Report. United States of America: World HealthOrganization, 2000.

Dyfyniad MLA

World health Organization UNICEF. Global Water Supply and Sanitation Assessment 2000 Report. World HealthOrganization, 2000.

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