Dyfyniad APA

Vienna Convention for the Protection of the Ozone Layer (1985). Great Neck Publishing.

Dyfyniad Arddull Chicago

Vienna Convention for the Protection of the Ozone Layer (1985). Great Neck Publishing.

Dyfyniad MLA

Vienna Convention for the Protection of the Ozone Layer (1985). Great Neck Publishing.

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