Regina Castro Mc Gowan. (o. J.). Vem Falar Português! Portuguese for All. Pressbooks.
ISO-690 (author-date, English)REGINA CASTRO MCGOWAN, [no date]. Vem Falar Português! Portuguese for All. Pressbooks.
Modern Language Association 9th editionRegina Castro Mc Gowan. Vem Falar Português! Portuguese for All. Pressbooks.
Mohr Siebeck - Recht (Deutsch - Österreich)Regina Castro Mc Gowan: Vem Falar Português! Portuguese for All,
Emerald - HarvardRegina Castro Mc Gowan. (o. J.). Vem Falar Português! Portuguese for All, Bd. , Pressbooks.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.