Morton, Bruce Rutherford. <br/><br/>
Numerical approximation. 

 - London :  Routledge & K. Paul,  [1966] 
 - Library of mathematics .
<br/><br/> "Companion volume to [the author's] Numerical solution of equations.  First published 1964. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numerical analysis.