Coddington,Earl.A. Levinson,Norman. <br/><br/>
Theory of ordinary differential equations 
/By Earl A. Coddinton, Norman Levinsion  
 - New York  McGraw- Hill Book  1955 
 - xii, 429 p. 
 - International Series in Pure and Applied Mathematics .
<br/><br/> Includes reference,index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ordinary differential equations
<br/><br/><label>Dewey Class. No.: </label>515.352  / COD