Citazione APA

Tran Thi Thanh Yen., & Duong Thi Cao Ha. (1999). Comparison and contrast between English and Vietnamese diphthong systems. Đà nẵng.

Stile di citazione Chicago

Tran Thi Thanh Yen., e Duong Thi Cao Ha. Comparison and Contrast between English and Vietnamese Diphthong Systems. Đà nẵng, 1999.

Citazione MLA

Tran Thi Thanh Yen., e Duong Thi Cao Ha. Comparison and Contrast between English and Vietnamese Diphthong Systems. Đà nẵng, 1999.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.