APA (7e ed.) Bronvermelding

International Energy Agency. (2015). Key world energy statistics 2015. Organisation for Economic Co-operation and Development.

Chicago (17e ed.) Bronvermelding

International Energy Agency. Key World Energy Statistics 2015. Paris: Organisation for Economic Co-operation and Development, 2015.

MLA (9e ed.) Bronvermelding

International Energy Agency. Key World Energy Statistics 2015. Organisation for Economic Co-operation and Development, 2015.