TY  - BOOK
AU  - Tomei,Lawrence A.
TI  - Online and distance learning: concepts, methodologies, tools, and applications 
SN  - 159904935X (hbk.)
PY  - 2008///
CY  - Hershey, PA.
PB  - Information Science Reference
KW  - Distance education
KW  - United States
ER  -