Cita APA (7th ed.)

International Energy Agency & ProQuest (Firm). (2009). IEA scoreboard 2009: 35 key energy trends over 35 years. OECD/IEA.

Cita Chicago (17th ed.)

International Energy Agency i ProQuest (Firm). IEA Scoreboard 2009: 35 Key Energy Trends over 35 Years. Paris: OECD/IEA, 2009.

Cita MLA (9th ed.)

International Energy Agency i ProQuest (Firm). IEA Scoreboard 2009: 35 Key Energy Trends over 35 Years. OECD/IEA, 2009.