Colerus, Egmont <br/><br/>
For simple numbers to the calculus 
Egmont Colerus 
 - Londan  William Heinemann  1954 
 - 255p. 
<br/><br/><label>ISBN: </label> 9.6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics