United Nations. Economic and Social Commission for Asia and the Pacific. Subcommittee on Energy Resources and Electric Power. (1974). Proceedings of the twelfth session of the Sub-committee on energy resources and electric power, held at Bangkok, 6-13 Dec. 1972. United Nations.
Lua i Stíl Chicago (17ú heag.)United Nations. Economic and Social Commission for Asia and the Pacific. Subcommittee on Energy Resources and Electric Power. Proceedings of the Twelfth Session of the Sub-committee on Energy Resources and Electric Power, Held at Bangkok, 6-13 Dec. 1972. New York: United Nations, 1974.
Lua MLA (9ú heag.)United Nations. Economic and Social Commission for Asia and the Pacific. Subcommittee on Energy Resources and Electric Power. Proceedings of the Twelfth Session of the Sub-committee on Energy Resources and Electric Power, Held at Bangkok, 6-13 Dec. 1972. United Nations, 1974.