| Erscheinungsjahr | ISBN | Autor(en) | Titel |
|---|---|---|---|
| 1993 | 978-3-901139-02-4 | IPEC/OPEC Workshop, Vienna, September 22nd and 23rd, 1993: The impact of energy taxes and environmental measures on consumption, prices, and investment in the petroleum industry | |
| 1994 | 978-3-901139-03-1 | SUBROTO Dr | VIEWPOINT 1992-94, A SELECTION OF SPEECHES BY Dr SUBROTO, SECRETARY GENERAL OF OPEC |