| 521 | limnological study of the Himayat sagar and Hussain Sagar lakes | |
| 522 | ||
| Language: | English | |
| Shodhganga | ||
| 523 | investigation in analysis of water pollutants: Analysis of carbamate pesticides | |
| 524 | ||
| Language: | English | |
| 525 | Resistivity survey for groundwater in hard rock areas with special reference to basalts | |
| 526 | Ultrastructural and physiological studies on the effects of water pollutants on aquatic flora | |
| Language: | English | |
| 527 | Studies on algae and water pollution of certain ponds of Kanpur | |
| 528 | Effects of some pesticides on an airbreathing freshwater fish anabas testudineus (bloch) | |
| Language: | English | |
| 529 | ||
| 530 | ||
| Language: | English | |
| 531 | ||
| 532 | ||
| Language: | English | |
| 533 | ||
| 534 | Limnological studies on some fresh-water ponds of North India | |
| Language: | English | |
| 535 | ||
| Shodhganga | ||
| 536 | Assessment of the Chambal river pollution after the addition of treated effluent | |
| Language: | English | |
| 537 | ||
| 538 | ||
| Language: | English | |
| 539 | ||
| 540 | Ecology of River Ganga in Varanasi with special reference to pollution | |
| Language: | English | |