Media type: E-Article Title: Teaching and learning english as a second language: Trends in research and practice Contributor: Hayes, Curtis W. Published: Elsevier BV, 1979 Published in: System, 7 (1979) 2, Seite 161-164 Language: English DOI: 10.1016/0346-251x(79)90041-1 ISSN: 0346-251X Keywords: Linguistics and Language ; Education ; Language and Linguistics Origination: Footnote: