1.
図書 |
thoroughly revised by P.M. Bakshi
|
|||||
2.
図書 |
By Patrick Carnegy
|
|||||
3.
図書 |
Jyoti Lal Bhargava
|
|||||
4.
図書 |
by Parmeshwar Dayal Shrivastava and Shiv Dayal Shrivastava
|
|||||
5.
図書 |
compilation by Baby Krishnan, Prafulla C. Pant
|