Dyfyniad APA

Write better, speak better. Reader's Digest Association.

Dyfyniad Arddull Chicago

Write Better, Speak Better. Pleasantville, N.Y.: Reader's Digest Association.

Dyfyniad MLA

Write Better, Speak Better. Reader's Digest Association.

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