APA (7th ed.) Citation

Petroleum Economist Ltd, Unocal Corporation, Bush, P., & Fuller, K. (2003). Oil & gas map of Asia (2003 ed.). Petroleum Economist.

Chicago Style (17th ed.) Citation

Petroleum Economist Ltd, Unocal Corporation, P. Bush, and K. Fuller. Oil & Gas Map of Asia. 2003 ed. London: Petroleum Economist, 2003.

MLA (9th ed.) Citation

Petroleum Economist Ltd, et al. Oil & Gas Map of Asia. 2003 ed. Petroleum Economist, 2003.