Cita APA (7a ed.)

International Energy Agency. (2011). Coal information 2011, with 2010 data. International Energy Agency.

Cita Chicago Style (17a ed.)

International Energy Agency. Coal Information 2011, with 2010 Data. [Paris]: International Energy Agency, 2011.

Cita MLA (9a ed.)

International Energy Agency. Coal Information 2011, with 2010 Data. International Energy Agency, 2011.