TY  - GEN
AU  - Crawley, Anita 
TI  - Supporting online students: a guide to planning, implementing and evaluating services
SN  - 9781118076545
PY  - 2012///
CY  - San Francisco
PB  - Jossey-Bass
KW  - Online learning
KW  - Web - Based instruction
KW  - Computer assisted instruction
ER  -