Wetzels, W. L. (1991). Contrastive and allophonic properties of Brazilian Portugese vowels. New analysis in romance linguistics, ed. by D. Wanner, D.A. Kibbee, Amsterdam [etc.], 1991, P. 77-100 (Amsterdam studies in the theory and history of linguistic science), 77.
Chicago Style (17th ed.) CitationWetzels, W. Leo. "Contrastive and Allophonic Properties of Brazilian Portugese Vowels." New Analysis in Romance Linguistics, Ed. by D. Wanner, D.A. Kibbee, Amsterdam [etc.], 1991, P. 77-100 (Amsterdam Studies in the Theory and History of Linguistic Science) 1991: 77.
MLA (9th ed.) CitationWetzels, W. Leo. "Contrastive and Allophonic Properties of Brazilian Portugese Vowels." New Analysis in Romance Linguistics, Ed. by D. Wanner, D.A. Kibbee, Amsterdam [etc.], 1991, P. 77-100 (Amsterdam Studies in the Theory and History of Linguistic Science), 1991, p. 77.