Mastering English
Maldonado, Gloria.
Mastering English Gloria Maldonado, Carmen Mercado. - 4. ed. - Puerto Rico Editorial Panamericana 2004. - 250 p. col. ill. 28 cm.
English language--Study and teaching--Spanish speakers.--Puerto Rico
Mastering English Gloria Maldonado, Carmen Mercado. - 4. ed. - Puerto Rico Editorial Panamericana 2004. - 250 p. col. ill. 28 cm.
English language--Study and teaching--Spanish speakers.--Puerto Rico