TY  - BOOK
AU  - Coultas,Valerie
TI  - Constructive talk in challenging classrooms: strategies for behaviour management and talk-based tasks 
SN  - 0415403421 (hbk.)
PY  - 2007///
CY  - London
PB  - Routledge
KW  - Learning
KW  - Oral communication
KW  - Study and teaching
N1  - Includes bibliographical references and index
ER  -