APA-referens (7:e uppl.)
International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2011). Coal information 2011, with 2010 data. International Energy Agency.
Chicago-referens (17:e uppl.)
International Energy Agency, Organisation for Economic Co-operation and Development, och ProQuest (Firm). Coal Information 2011, with 2010 Data. [Paris]: International Energy Agency, 2011.
MLA-referens (9:e uppl.)
International Energy Agency, et al. Coal Information 2011, with 2010 Data. International Energy Agency, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.