Allen R G D <br/><br/>
Basic mathematics 

 - London  Macmillan Press           1968 
 - 512p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathemaics
<br/><br/><label>Dewey Class. No.: </label>B, K8;2