Hurewicz, Witold. <br/><br/>
Lectures on ordinary differential equations   
by Witold Hurewicz 
 - New York  John Wiley & Sons  1958 
 - xvii, 122p. 
 - Technology Press Books in Science and Engineering .
<br/><br/><label>LCCN: </label>58-7901 
<br/><br/><label>Dewey Class. No.: </label>515.352  / N58