TY  - BOOK
AU  - Littleton Karen Editor
AU  -  Light Paul Editor
TI  - Learning with compters:  Analysing productive interaction
SN  - 0415142857
U1  - T:3,16, N9 
PY  - 1999///
CY  - London
PB  - Routledge UK       
KW  - TEACHING
ER  -