Library of Congress classification schedules :  a cumulation of additions and changes through 1978: class T: Technology 

 - 5. ed 
 - 207 p. 
<br/><br/><label>ISBN: </label>0-8103-1180-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classificação<br/>Tecnologia
<br/><br/><label>Universal Decimal Class. No.: </label>025.4  / L697l