Lancaster, Frederick Wilfrid,  1933- <br/><br/>
Guidelines for the evaluation of information systems and services / prepared for UNESCO contract by F.W. Lancaster 

 - [París] :  UNESCO,  1977 
 - iii, 178 p. 
<br/><br/> Fotocopia  Monografía 
<br/><br/><label>Subjects--Index Terms: </label>Servicios de Información - Evaluación 
<br/><br/><label>LC Class. No.: </label>Z674.4/L35