Lefschetz, Solomon. <br/><br/>
Differential equations: geometric theory / 
Solomon Lefschetz. 
 - 2nd. 
 - New York :  Interscience Publishers,  [1963] 
 - 390 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations. --Topology
<br/><br/><label>Dewey Class. No.: </label>515.35  / LED 1963