Dyfyniad APA

OECD iLibrary, Organisation for Economic Co-operation and Development, International Energy Agency, & Van der Hoeven, M. (2013). Coal: Medium-term market report 2013 : market trends and projects to 2018. OECD.

Dyfyniad Arddull Chicago

OECD iLibrary, Organisation for Economic Co-operation and Development, International Energy Agency, and Maria Van der Hoeven. Coal: Medium-term Market Report 2013 : Market Trends and Projects to 2018. Paris: OECD, 2013.

Dyfyniad MLA

OECD iLibrary, et al. Coal: Medium-term Market Report 2013 : Market Trends and Projects to 2018. OECD, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.