Lefschetz, Solomon, 1884-1972.  Lefschetz, Solomon, 1884-1972. <br/><br/>
Differential equations: geometric theory. 

 - 2d ed. 
 - New York,  Interscience Publishers  [1963] 
 - Pure and applied mathematics,  v. 6 .
<br/><br/><label>LCCN: </label>62021884 /L/r82 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Topology.
<br/><br/><label>LC Class. No.: </label>QA371  / .L36 1963 
<br/><br/><label>Dewey Class. No.: </label>517.38