Hartree, Douglas R. (Douglas Rayner), 1897-1958.  Hartree, Douglas R. (Douglas Rayner), 1897-1958. <br/><br/>
Numerical analysis. 

 - 2nd ed. 
 - Oxford :  Clarendon Press,  [1964 reprint] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numerical calculations.