Dyfyniad APA

Cunningham, S., & Bowler, B. (1994). Headway: Intermediate Pronunciation. Thanh Hóa: Thanh Hóa.

Dyfyniad Arddull Chicago

Cunningham, Sarah., và Bill Bowler. Headway: Intermediate Pronunciation. Thanh Hóa: Thanh Hóa, 1994.

Dyfyniad MLA

Cunningham, Sarah., và Bill Bowler. Headway: Intermediate Pronunciation. Thanh Hóa: Thanh Hóa, 1994.

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