Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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