TY  - BOOK
AU  - Haythornthwaite, Caroline
TI  - E-learning theory and practice 
SN  - 978 1 8492 0471 2
U1  - 371 3344678 HAY 
PY  - 2011///
CY  - Los Angeles 
PB  -  SAGE
KW  - INTERNET IN EDUCATION
ER  -