TY  - BOOK
AU  - Cleveland-Innes,M.
AU  - Garrison,D.R.
TI  - An introduction to distance education: understanding teaching and learning in a new era 
SN  - 9780415995986 (alk. paper)
PY  - 2010///
CY  - New York
PB  - Routledge
KW  - Distance education
N1  - Includes bibliographical references and index
ER  -