Simmons, George F <br/><br/>
Differential equations  with applications and historical notes 

 - New Delhi  Tata McGraw-hill publishing company ltd  1972 
 - x, 465 p.; 22cm. 
<br/><br/><label>ISBN: </label>70995729 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations<br/>Differential equations, linear<br/>Elliptic differential equations<br/>Linear equation<br/>Non linear equations