TY  - BOOK
AU  - Darbyshire,Paul
TI  - Instructional technologies: cognitive aspects of online programs 
SN  - 1591402379
PY  - 2005///
CY  - Hershey PA
PB  - IRM Press
KW  - Distance education
KW  - Educational technology
KW  - Instructional systems
KW  - Design
KW  - Internet in education
N1  - Includes bibliographical references and index
ER  -