Economics and Social Council. (1971). The sea: Mineral resources of the sea; report of the secretary- general. England: United Nations.
Chicago Style aipamenaEconomics and Social Council. The Sea: Mineral Resources of the Sea; Report of the Secretary- General. England: United Nations, 1971.
MLA aipamenaEconomics and Social Council. The Sea: Mineral Resources of the Sea; Report of the Secretary- General. England: United Nations, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.