Dyfyniad APA

(2008). Style guide: The best selling guide to english usage. Viva Books.

Dyfyniad Arddull Chicago

Style Guide: The Best Selling Guide to English Usage. New Delhi: Viva Books, 2008.

Dyfyniad MLA

Style Guide: The Best Selling Guide to English Usage. Viva Books, 2008.

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