Citazione Stile APA (7a Edizione)

SILVERSTEIN RUTH J. (2015). SPANISH NOW ( WITH CD ) (8TH ED.). BARRON'S.

Citazione stile Chigago Style (17a edizione)

SILVERSTEIN RUTH J. SPANISH NOW ( WITH CD ). 8TH ED. NEW YORK: BARRON'S, 2015.

Citatione MLA (9a ed.)

SILVERSTEIN RUTH J. SPANISH NOW ( WITH CD ). 8TH ED. BARRON'S, 2015.