Great Britain. Office of Population Censuses and Surveys. (1971). Population projections 1970-2010: England and Wales, Scotland, Northern Ireland, Great Britain. H.M.S.O..
Citace podle Chicago (17th ed.)Great Britain. Office of Population Censuses and Surveys. Population Projections 1970-2010: England and Wales, Scotland, Northern Ireland, Great Britain. Lond.: H.M.S.O., 1971.
Citace podle MLA (8th ed.)Great Britain. Office of Population Censuses and Surveys. Population Projections 1970-2010: England and Wales, Scotland, Northern Ireland, Great Britain. H.M.S.O., 1971.
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