Beaven, C. H. J. <br/><br/>
The approximations handbook :  the art of nearly / 
C.H.J. Beaven 
 - Wilmslow :  Sigma,  1989 
 - 196 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>1850581193 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Approximation theory