Παραπομπή σε μορφή APA (7η εκδ.)

Barltrop, R. (2019). Oil and gas in a new Libyan era: Conflict and continuity. Oxford Institute for Energy Studies.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barltrop, R. Oil and Gas in a New Libyan Era: Conflict and Continuity. Oxford Institute for Energy Studies, 2019.

Παραπομπή σε μορφή MLA (9th εκδ.)

Barltrop, R. Oil and Gas in a New Libyan Era: Conflict and Continuity. Oxford Institute for Energy Studies, 2019.