Beaven, C. H. J. <br/><br/>
The approximations handbook - the art of nearly/ 
C. H. J. Beaven. 
 -  Sigma,  1989. 
 - ix, 196 p.: 
<br/><br/><label>ISBN: </label>1850581193 :  ª18.95 
<br/><br/><label>LCCN: </label>gb 88047746 
<br/><br/><label>Nat. Bib. No.: </label>GB88-47746 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Approximation theory.
<br/><br/><label>Dewey Class. No.: </label>511.4  / B386a