| 261 | |
| 262 | |
| Language: | English |
| 263 | |
| 264 | |
| Language: | English |
| 265 | |
| 266 | |
| Language: | English |
| 267 | |
| 268 | comparative study of the copulatory apparatus and genital muscles in the males of phytophaga |
| Language: | English |
| 269 | |
| 270 | Systems modelling and planning studies of transportation in metropolitan areas |
| Language: | English |
| 271 | Accurate rational two-part modelling of passive and active distributed parameter structures |
| 272 | |
| Language: | English |
| 273 | |
| 274 | |
| Language: | English |
| 275 | |
| 276 | |
| Language: | English |
| 277 | Chemical weed control in direct-seeded paddy Oryza sativa L under puddled and non-puddled conditions |
| 278 | Comparative study of radiation and chemical mutagenesis in tomato, Lycopersicon esculentum Mill |
| Language: | English |
| 279 | |
| 280 | |
| Language: | English |