Hinkel, Eli Teaching academic ESL writing : pratical techniques in vocabulary and grammar / Eli Hinkel . - London, New York : Routledge, 2009 . - XII-360 p. ; 25 cm - ESL Applied Linguistics professional series . Bibliogr.Index ISBN: 978-0-8058-3890-9 : 44.25 Universal Decimal Class. No.: 2009