Hartman Philip <br/><br/>
Ordinary differential equations 

 - London  John wiley & sons inc        1964 
 - xiv,612p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equations
<br/><br/><label>Dewey Class. No.: </label>B33:1, K4