APA (7th ed.) Citation

Isasa, A. I. Perceptual discrimination and categorization of vowels in different levels of foreign language instruction. UPV/EHU Press.

Chicago Style (17th ed.) Citation

Isasa, Ane Icardo. Perceptual Discrimination and Categorization of Vowels in Different Levels of Foreign Language Instruction. UPV/EHU Press.

MLA (9th ed.) Citation

Isasa, Ane Icardo. Perceptual Discrimination and Categorization of Vowels in Different Levels of Foreign Language Instruction. UPV/EHU Press.

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