Cita APA

International Energy Agency. (1978). Steam coal: Prospects to 2000. Organisation for Economic Co-operation and Development ; sold by OECD Publications and Information Center].

Citación estilo Chicago

International Energy Agency. Steam Coal: Prospects to 2000. Paris : [Washington, D.C.: Organisation for Economic Co-operation and Development ; sold by OECD Publications and Information Center], 1978.

Cita MLA

International Energy Agency. Steam Coal: Prospects to 2000. Organisation for Economic Co-operation and Development ; sold by OECD Publications and Information Center], 1978.