Pownall Malcolm W <br/><br/>
Prelude to the calculus 
Pownall Malcolm W 
 -  1967 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>23416 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B32, K7