APA引文

International Energy Agency. (2012). Coal information: 2012 with 2011 data. OECD/IEA.

Chicago Style (17th ed.) Citation

International Energy Agency. Coal Information: 2012 with 2011 Data. France: OECD/IEA, 2012.

MLA引文

International Energy Agency. Coal Information: 2012 with 2011 Data. OECD/IEA, 2012.

警告：這些引文格式不一定是100％准確.