United Nations. Natural Resources and Energy Division. (1984). Energy planning in developing countries. Oxford University Press in co-operation with the United Nations.
Chicago Style (17th ed.) ZitazioaUnited Nations. Natural Resources and Energy Division. Energy Planning in Developing Countries. New York: Oxford University Press in co-operation with the United Nations, 1984.
MLA (9th ed.) ZitazioaUnited Nations. Natural Resources and Energy Division. Energy Planning in Developing Countries. Oxford University Press in co-operation with the United Nations, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.