Kaplan, Wilfred <br/><br/>
Ordinary differential equations 

 - London  Addison-Wesley  1958 
 - xv, 534p. : ill. 
 - Addison-wesley series in mathematics .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations -- (Ordinary)<br/>Mathematics<br/>Ordinary differential equations