Aziz, A. K. ed. <br/><br/>
Differential equations V.1  <br/> 
edited by A. K. Aziz. 
 - New York :  Van Nostrand  1969 
 - vii, 199p.  ill. ; 
<br/><br/><label>Subjects--Index Terms: </label>Differential equations 
<br/><br/><label>Universal Decimal Class. No.: </label>517.91  / AZI.1