Cita APA (7a ed.)
OECD. International Energy Agency. (2007). Coal information 2007: With 2006 data. OECD.
Cita Chicago Style (17a ed.)
OECD. International Energy Agency. Coal Information 2007: With 2006 Data. Paris: OECD, 2007.
Cita MLA (9a ed.)
OECD. International Energy Agency. Coal Information 2007: With 2006 Data. OECD, 2007.
Precaución: Estas citas no son 100% exactas.