TY  - BOOK
AU  - Hollister,David
AU  - McGahey,Lawrence
TI  - Distance learning: principles for effective design, delivery, and evaluation 
SN  - 0761920897
U1  - 378.175 22
PY  - 2001///].
CY  - Usa: 
PB  - Sage Publications, 
KW  - Distance education
KW  - Education, Higher
N1  - Includes index
ER  -