Butler, R.  1923- <br/><br/>
An introduction to nemerical methods / 
R. Butler and E. Kerr. 
 - London :  Pitamn,  1962. 
 - 386 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numerical calculations.