Churchill, Robert Paul. <br/><br/>
Logic :  an introduction / 
Robert Paul Churchill. 
 - 2nd ed. 
 - New York :  St. Martin's Press,  c1990. 
 - xvii, 635 p. :  ill. ;  25 cm. 
<br/><br/> Rev. ed. of: Becoming logical. 1986. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0312023537 
<br/><br/><label>LCCN: </label>88063043 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>LC Class. No.: </label>BC71  / .C43 1990 
<br/><br/><label>Dewey Class. No.: </label>160