Dyfyniad APA

World Meteorological Organization(WMO): Bulletin. World Meteorological Organization.

Dyfyniad Arddull Chicago

World Meteorological Organization(WMO): Bulletin. Switzerla: World Meteorological Organization.

Dyfyniad MLA

World Meteorological Organization(WMO): Bulletin. World Meteorological Organization.

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