Citazione Stile APA (7a Edizione)

Merino Garcia, P. (2005). OPEC in the 21st century. What has changed and what have we learned? Oxford Institute for Energy Studies.

Citazione stile Chigago Style (17a edizione)

Merino Garcia, P. OPEC in the 21st Century. What Has Changed and What Have We Learned? Oxford Institute for Energy Studies, 2005.

Citatione MLA (9a ed.)

Merino Garcia, P. OPEC in the 21st Century. What Has Changed and What Have We Learned? Oxford Institute for Energy Studies, 2005.