TY  - BOOK
AU  - Heinich,Robert
TI  - Instructional media and technologies for learning
SN  - 0138591598
AV  - LB1028.3 .H45 1999
U1  - 371.33 21
PY  - 1999///
CY  - Upper Saddle River, N.J.
PB  - Merrill
KW  - Educational technology
KW  - Audio-visual education
N1  - Includes bibliographical references and index
ER  -