Svart gull
pdf
- Author: Yergin Daniel
- Language: Norwegian
- Year: 1991
- Author: Yergin Daniel
- Language: English
- Year: 2020
- Author: Stanislaw Joseph, Yergin Daniel
- Language: English
- Year: 2002
- Author: Gustafson Thane, Yergin Daniel, PearmanRoger R
- Language: English
- Year: 1994