World Bank. (1971). Telecommunication: Sector working paper. Paris: World Bank.
Trích dẫn kiểu ChicagoWorld Bank. Telecommunication: Sector Working Paper. Paris: World Bank, 1971.
MLA CitationWorld Bank. Telecommunication: Sector Working Paper. Paris: World Bank, 1971.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.