International Oil & Gas Markets Conference Calgary, Alberta. (1994). 12th International Oil & Gas Markets Conference: Calgary, Alberta, Canada, September 26 - 28, 1993. Multi-Science Publ.
Chicago-Zitierstil (17. Ausg.)International Oil & Gas Markets Conference Calgary, Alberta. 12th International Oil & Gas Markets Conference: Calgary, Alberta, Canada, September 26 - 28, 1993. [Brentwood, Essex]: Multi-Science Publ, 1994.
MLA-Zitierstil (9. Ausg.)International Oil & Gas Markets Conference Calgary, Alberta. 12th International Oil & Gas Markets Conference: Calgary, Alberta, Canada, September 26 - 28, 1993. Multi-Science Publ, 1994.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.