Dyfyniad APA

LISTENING. (1989). Listening to Toefl. Educational Testing Service.

Dyfyniad Arddull Chicago

LISTENING. Listening to Toefl. Princeton: Educational Testing Service, 1989.

Dyfyniad MLA

LISTENING. Listening to Toefl. Educational Testing Service, 1989.

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