APA-Zitierstil (7. Ausg.)

(2002). Oil and gas map of Western, Central and Eastern Europe (2002 ed.). Petroleum Economist u.a.

Chicago-Zitierstil (17. Ausg.)

Oil and Gas Map of Western, Central and Eastern Europe. 2002 ed. London: Petroleum Economist u.a, 2002.

MLA-Zitierstil (9. Ausg.)

Oil and Gas Map of Western, Central and Eastern Europe. 2002 ed. Petroleum Economist u.a, 2002.