International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). Coal information: With 2007 data. OECD/IEA.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua i Stíl Chicago (17ú heag.)
International Energy Agency, Organisation for Economic Co-operation and Development, agus ProQuest (Firm). Coal Information: With 2007 Data. Paris: OECD/IEA, 2008.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
International Energy Agency, et al. Coal Information: With 2007 Data. OECD/IEA, 2008.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.