Klenk, Virginia. <br/><br/>
Understanding  Symbolic  Logic 

 - 1st /   2009. 
 - Delhi:  Dorling  Kindersley (India) Pvt. Ltd.,  2009. 
 - 479p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics, Mathematical  Logic. 
<br/><br/><label>Dewey Class. No.: </label>511.3