Focus on the language classroom : an introduction to classroom research for language teachers - Allwright, Dick; Bailey, Kathleen M. (Cambridge, UK : Cambridge University Press, 1991)
"Originally published in the New Directions in Language Teaching Serie, edited by Howard B. Altman and Peter Strevens"--Reimpresiones: 2004
Keywords: LENGUAJE Y LENGUAS -- ESTUDIO Y ENSEÑANZA