Dyfyniad APA

(1990). Prentice Hall grammar and composition 1. Pearson Education South Asia.

Dyfyniad Arddull Chicago

Prentice Hall Grammar and Composition 1. Jurong, Singapore: Pearson Education South Asia, 1990.

Dyfyniad MLA

Prentice Hall Grammar and Composition 1. Pearson Education South Asia, 1990.

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