Driscoll, Liz Common mistakes at PET ... and how to avoid them / Liz Driscoll. - 1a ed. - Cambridge : Cambridge University Press, 2005. - 64 p. : il. ; 21 cm. - (Cambridge books for Cambridge exams) . ISBN: 0521606845 Subjects--Topical Terms: Ingles--Estudio y enseñanza LC Class. No.: PE1128 / D75 2005