Langefors, Börje <br/><br/>
Teoría de los sistemas de información 
Borje Langefors ; translated by Aníbal Carlos Timoteo Leal. 
 - 4th ed. 
 - Buenos Aires  El Ateneo  c1985. 
 - xiv, 305 p.  ill.  23 cm. 
<br/><br/> Translation of: Theoretical analysis of information systems. 
<br/><br/>Bibliography: p. 299-304. 
<br/><br/><label>ISBN: </label>9500252252 
<br/><br/><label>LCCN: </label>92000897  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management information systems<br/>Electronic data processing
<br/><br/><label>LC Class. No.: </label>T58.6  / .L35318 1985 
<br/><br/><label>Dewey Class. No.: </label>001.5