TY  - GEN
AU  - Ruhe, Valerie
AU  - Zumbo, Bruno D. (jt. auth)
TI  - Evaluaation in distance education and E-Learning: : the unfolding model
SN  - 9781593858735
U1  - 375.175 
PY  - 2009///
CY  - New York
PB  - The Guilford Press
KW  - Distance education-Evaluation
KW  - Computer-Assisted instruction-Evaluation
N1  - PB
ER  -