Bikson, Thomas H., 1936-, <br/><br/>
Classroom observation : a case study in obtrusiveness / 
Thomas H. Bikson   
 - v, 53 pages ;  28 cm. 
 - The Rand paper series;  P-5804 .
 - The Rand paper series;  P-5804  .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge, Theory of <br/>Television in education