| Summary: | Discusses oil, a natural resource which is a primary source of energy and numerous important by-products. |
|---|---|
| Physical Description: | 38 pages : color illustrations ; 30 cm. |
| ISBN: | 0531041751 (U.S.) |
| Summary: | Discusses oil, a natural resource which is a primary source of energy and numerous important by-products. |
|---|---|
| Physical Description: | 38 pages : color illustrations ; 30 cm. |
| ISBN: | 0531041751 (U.S.) |