Dyfyniad APA

Protection of seabed and international seabed authority.

Dyfyniad Arddull Chicago

Protection of Seabed and International Seabed Authority.

Dyfyniad MLA

Protection of Seabed and International Seabed Authority.

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