Gutiérrez Font, R. (1993). Phonological defossilization in adult Spanish speakers learning english as a foreing language. Escuela de Lenguas Modernas, Universidad de Costa Rica.
Chicago-Zitierstil (17. Ausg.)Gutiérrez Font, Roxana. Phonological Defossilization in Adult Spanish Speakers Learning English as a Foreing Language. San José, Costa Rica: Escuela de Lenguas Modernas, Universidad de Costa Rica, 1993.
MLA-Zitierstil (9. Ausg.)Gutiérrez Font, Roxana. Phonological Defossilization in Adult Spanish Speakers Learning English as a Foreing Language. Escuela de Lenguas Modernas, Universidad de Costa Rica, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.