|
000 100 200 300 400 500 600 700 800 900 [ วิทยาศาสตร์และคณิตศาสตร์ (Natural Sciences and Mathematics) ] back |
|
500 510 520 530 540 550 560 570 580 590 [ ธรณีวิทยา (Earth Sciences) ] |
|
550 551 552 553 554 555 556 557 558 559 [ Economic geology ] |
| DC | คำอธิบาย | ||||||||
| 1 | Economic geology | ||||||||
| 2 | Carbonaceous materials | ||||||||
| 3 | Iron | ||||||||
| 4 | Metals and semimetals | ||||||||
| 5 | Structural and sculptural stone | ||||||||
| 6 | Other economic materials | ||||||||
| 7 | Water | ||||||||
| 8 | Gems | ||||||||
| [แสดง 8/8 รายการ] | |||||||||