Dyfyniad APA
Thompson, W. C. (1990). Western europe 1990 (9th ed.). Stryker-post publication.
Dyfyniad Arddull Chicago
Thompson, Wayne C. Western Europe 1990. 9th ed. Washington, D.C.: Stryker-post publication, 1990.
Dyfyniad MLA
Thompson, Wayne C. Western Europe 1990. 9th ed. Stryker-post publication, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.