Dyfyniad APA
Ortiz Griffin, J., & Griffin, W. D. (2003). Spain and Portugal today. Peter Lang.
Dyfyniad Arddull Chicago
Ortiz Griffin, Julia, and William D. Griffin. Spain and Portugal Today. New York: Peter Lang, 2003.
Dyfyniad MLA
Ortiz Griffin, Julia, and William D. Griffin. Spain and Portugal Today. Peter Lang, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.