TY  - BOOK
AU  - Levine,S.Joseph
TI  - Making distance education work: understanding learning and learners at a distance 
SN  - 1411653556
AV  - LC5800 M35
PY  - 2005///
CY  - Okemos, Michigan
PB  - Learner
KW  - Educación a distancia
ER  -