Παραπομπή APA

International Energy Agency. Natural Gas Information. France: Organisation for Economic Cooperation and Development.

Παραπομπή Chicago Style

International Energy Agency. Natural Gas Information. France: Organisation for Economic Cooperation and Development.

Παραπομπή MLA

International Energy Agency. Natural Gas Information. France: Organisation for Economic Cooperation and Development.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.