Videotext  the coming revolution in home/office information retrieval/ 
Efrem Sigel, with Joseph Roizen, Colin McIntyre, Max Wilkinson. 
 - New York  Knowledge Industry Publications  1980 
 - 154 p :  ill ;  24 cm. 
 - Communications library .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0914236415  24.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems<br/>Television