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..
芝加哥风格引文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.
MLA引文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.
警告：这些引文格式不一定是100％准确.