Fertility and family planning in Europe around 1970 a comparative study of twelve national surveys. United Nations.
Lua i Stíl Chicago (17ú heag.)Fertility and Family Planning in Europe Around 1970 a Comparative Study of Twelve National Surveys. United Nations.
Lua MLA (8ú heag.)Fertility and Family Planning in Europe Around 1970 a Comparative Study of Twelve National Surveys. United Nations.
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