Discussions that work :
Ur, Penny.
Discussions that work : task-centred fluency practice / Penny Ur. - 1st. ed. - Cambridge : Cambridge University Press, 1981. - 122 p.
25th. printing: 2003 .
INGLES --ENSEÑANZA.
INGLES HABLADO --ENSEÑANZA.
428.007 1 U72d 1981
Discussions that work : task-centred fluency practice / Penny Ur. - 1st. ed. - Cambridge : Cambridge University Press, 1981. - 122 p.
25th. printing: 2003 .
INGLES --ENSEÑANZA.
INGLES HABLADO --ENSEÑANZA.
428.007 1 U72d 1981