APA-Zitierstil (7. Ausg.)

(2008). Oil & gas map of Western, Central and Eastern Europe (2008 ed.). Petroleum Economist u.a.

Chicago-Zitierstil (17. Ausg.)

Oil & Gas Map of Western, Central and Eastern Europe. 2008 ed. London: Petroleum Economist u.a, 2008.

MLA-Zitierstil (9. Ausg.)

Oil & Gas Map of Western, Central and Eastern Europe. 2008 ed. Petroleum Economist u.a, 2008.