Ray, M., Chaturvedi, J.C. and Sharma, Har Swarup <br/><br/>
A Text Book of Differential Equations  
For Post-Graduate Students  
 - Agra  Students' Friends & Co.  1956 
 - 392 
<br/><br/><label>Subjects--Personal Names: </label> Mathematics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics