Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
coal exploration  | |
|---|---|
| RT | coal |
| discoveries | |
| exploration | |
| peat | |
| SN | Before 1993, also search coal AND exploration. Added to Thesaurus in 1993. |
| Data sets | Publications | Expeditions | Thesaurus |
| coal exploration | |
|---|---|
| RT | coal |
| discoveries | |
| exploration | |
| peat | |
| SN | Before 1993, also search coal AND exploration. Added to Thesaurus in 1993. |