TY  - BOOK
AU  - Bikson,Thomas H.,1936-
ED  - Research and Development Corporation, 
TI  - Classroom observation : a case study in obtrusiveness
T2  - The Rand paper series
PY  - 1977///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Knowledge, Theory of
KW  - Television in education
N1  - Includes bibliographical references
ER  -