Dyfyniad APA
Television Trust for the environment. (1991). Coral reefs. Zeist, The Netherlands.
Dyfyniad Arddull Chicago
Television Trust for the environment. Coral Reefs. TVE Distribution Centre: Zeist, The Netherlands, 1991.
Dyfyniad MLA
Television Trust for the environment. Coral Reefs. Zeist, The Netherlands, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.