Byrne, Donn Listening comprehension I : pronunciation practice - London Longman 1973 - 2 v. : il Students' workbook, inv. 03543. -- Teacher's book, inv. 01847 Inglés ISBN: 0-582-55236-2 Subjects--Topical Terms: /LINGUISTICA/INGLES-USO; PERCEPCION Y COMPRENSION/REVISADO/