Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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