Crossley J N <br/><br/>
What is mathematical logic? 

 - London  Oxford University Press       1972 
 - 82p.  cm. 
<br/><br/><label>Standard No.: </label>44326 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R14, L2