Willers, Friedrich Adolf,  1883-1959. <br/><br/>
Practical analysis :  Graphical and numerical methods / 
Fr.A. Willers ; tr. by R.T. Beyer. 
 - New York,  Dover Publications,  [c1948]. 
 - x, 422 p.  diagrs. ;  25 cm. 
<br/><br/> Translation of Methoden der praktischen Analysis 
<br/><br/>Includes bibliographies 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Approximation theory<br/>Numerical analysis