APA (7th ed.) Citation

Petroleum Economist. (1998). World energy yearbook 1998. Petroleum Economist.

Chicago Style (17th ed.) Citation

Petroleum Economist. World Energy Yearbook 1998. Petroleum Economist, 1998.

MLA (8th ed.) Citation

Petroleum Economist. World Energy Yearbook 1998. Petroleum Economist, 1998.

Warning: These citations may not always be 100% accurate.