Hewings, Martin Advanced grammar in use : a self-study reference and practice book for advanced learners of english / Martin Hewings - 1a ed. - New York : Cambridge University Press, 1999. - IX, 340 p. ISBN: 0521498686 Subjects--Topical Terms: Inglés --EnseñanzaInglés --Gramática Dewey Class. No.: 425 / H39a