Zorrilla Arena, Santiago <br/><br/>
Guía para elaborar la tesis 
Santiago Zorrilla Arena. 
 - México  McGraw-Hill  c1992. 
 - xii, 111 p.  charts. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [107]-108. 
<br/><br/><label>ISBN: </label>9701001397 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dissertations, Academic