Copi, Irving M. <br/><br/>
Introduction to logic / 
Irving M. Copi, Carl Cohen. 
 - 12th ed. 
 - Upper Saddle River, N.J. :  Pearson/Prentice Hall,  c2005. 
 - xx, 683 p. :  ill. (some col.) ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0131898345 (student : alk. paper) 0131332759 (professional : alk. paper) 
<br/><br/><label>LCCN: </label>2004040147 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic--Textbooks.<br/>Lógica.<br/>Silogismos.<br/>Razonamiento.
<br/><br/><label>LC Class. No.: </label>BC 108  / C783i 2005 
<br/><br/><label>Dewey Class. No.: </label>160