Style de citation APA (7e éd.)

Pitt, E. R., & Leung, C. N. (2009). OPEC, oil prices and LNG. Nova Sciences Publishers.

Style de citation Chicago (17e éd.)

Pitt, Edward R., et Christopher N. Leung. OPEC, Oil Prices and LNG. New York: Nova Sciences Publishers, 2009.

Style de citation MLA (9e éd.)

Pitt, Edward R., et Christopher N. Leung. OPEC, Oil Prices and LNG. Nova Sciences Publishers, 2009.