| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | Studies on the cocking characteristics of Indian coals to be used in Metallurgical purposes |
| 6 | |
| 7 | Study to determine acceptability of septic field sewage disposal at mine colonies |
| 8 | |
| Language: | English |
| 9 | |
| 10 | |
| Language: | English |
| 11 | Studies on the coking characteristics of Indian coals to be used in metallurgical purposes |
| 12 | |
| Language: | English |
| 13 |