Cita APA (7a ed.)

Krichene, N., & Christensen, B. V. (2008). Crude oil prices: Trends and forecast. International Monetary Fund.

Cita Chicago Style (17a ed.)

Krichene, Noureddine, y Benedicte Vibe Christensen. Crude Oil Prices: Trends and Forecast. [Washington, District of Columbia]: International Monetary Fund, 2008.

Cita MLA (9a ed.)

Krichene, Noureddine, y Benedicte Vibe Christensen. Crude Oil Prices: Trends and Forecast. International Monetary Fund, 2008.