Klenk, Virginia <br/><br/>
Understanding symbolic logic  [Texte imprimé] / 
Virginia Klenk 
 - Englewood Cliffs:  Prentice-Hall,  1983 
<br/><br/>Notes bibliogr. 
<br/><br/><label>ISBN: </label>0-13-936468-4 
<br/><br/><label>Dewey Class. No.: </label>160  511.3