Coddington, Earl A., 1920- <br/><br/>
Theory of ordinary differential equations/ 
Earl A. Coddington, Norman Levinson. 
 - New York:  McGraw-Hill,  1955. 
 - 429 p. ;   23 cm. 
<br/><br/><label>LCCN: </label>54-011260 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations