ISBN [International standard book number] - [CD-ROM] 
ed. Ministerio de educacion y cultura, Agencia espanola 
 - CD ROM 
 - Madrid:  Micronet,  [1973?]- 
 - v.:  ill.;  12 cm 
 - Annuel 
<br/><br/> Description d'après : Edition (2002) 
<br/><br/><label>ISSN: </label>0000-0000 
 = ISBN [International standard book number] - [CD-ROM] 
<br/><br/><label>Dewey Class. No.: </label>015