TY  - BOOK
AU  - Schwartz, James E.
AU  - Beichner, Robert J.
TI  - Essentials of education technology
SN  - 0205277004
U1  - GSL 372.0285 Sch92 1999 
PY  - 1999///
CY  - Boston
PB  - Allyn and Bacon.
N1  - Includes bibliographical references and indexes
ER  -