APA (7th ed.) Citation

Delavari, H. (2011). An acoustic study of English vowels produced by Persian Efl student / Hilda Delavari.

Chicago Style (17th ed.) Citation

Delavari, Hilda. An Acoustic Study of English Vowels Produced by Persian Efl Student / Hilda Delavari. 2011.

MLA (9th ed.) Citation

Delavari, Hilda. An Acoustic Study of English Vowels Produced by Persian Efl Student / Hilda Delavari. 2011.

Warning: These citations may not always be 100% accurate.