Sigel, Efrem. <br/><br/>
Videotex 

 - Barcelona, Espaņa   ATE  1982 
 - 153 p.     21 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BASES DE DATOS<br/>SERVICIOS DE INFORMACION
<br/><br/><label>Dewey Class. No.: </label>025/Si22v