Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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