Gupta , Dr. R. K. <br/><br/>
Differential equations / 
Dr. R. K. Gupta and J. N. Sharma 
 - 41th ed. 
 - New Delhi :  Krishna Prakashana,  2007 
 - 580 p. :   ill. ;  21 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>515.625  / GUD