Não informado. (1957). Annual bulletin of housing and building statistics for Europe. United Nations, Economic Commission for Europe.
Cita Chicago Style (17a ed.)Não informado. Annual Bulletin of Housing and Building Statistics for Europe. Geneva, Suíça: United Nations, Economic Commission for Europe, 1957.
Cita MLA (8a ed.)Não informado. Annual Bulletin of Housing and Building Statistics for Europe. United Nations, Economic Commission for Europe, 1957.
Precaución: Estas citas no son 100% exactas.