Cita APA (7th ed.)

International Energy Agency & ProQuest (Firm). (2011). Energy policies of IEA countries: Poland 2011. OECD ; International Energy Agency.

Cita Chicago (17th ed.)

International Energy Agency i ProQuest (Firm). Energy Policies of IEA Countries: Poland 2011. Paris: OECD ; International Energy Agency, 2011.

Cita MLA (9th ed.)

International Energy Agency i ProQuest (Firm). Energy Policies of IEA Countries: Poland 2011. OECD ; International Energy Agency, 2011.