APA引文

Levin, B. (2011). WTI and Brent Benchmarks: The relative value of crude oil between North America and Europe. Oxford Institute for Energy Studies.

Chicago Style (17th ed.) Citation

Levin, B. WTI and Brent Benchmarks: The Relative Value of Crude Oil Between North America and Europe. Oxford Institute for Energy Studies, 2011.

MLA引文

Levin, B. WTI and Brent Benchmarks: The Relative Value of Crude Oil Between North America and Europe. Oxford Institute for Energy Studies, 2011.

警告：這些引文格式不一定是100％准確.