Cita APA (7a ed.)

Fikkert, P., & Freitas, M. J. (2006). Allophony and Allomorphy Cue Phonological Acquisition: Evidence from the European Portuguese vowel system. Universitat Autònoma de Barcelona.

Cita Chicago Style (17a ed.)

Fikkert, Paula, y Maria João Freitas. Allophony and Allomorphy Cue Phonological Acquisition: Evidence from the European Portuguese Vowel System. Universitat Autònoma de Barcelona, 2006.

Cita MLA (8a ed.)

Fikkert, Paula, y Maria João Freitas. Allophony and Allomorphy Cue Phonological Acquisition: Evidence from the European Portuguese Vowel System. Universitat Autònoma de Barcelona, 2006.