Singapore. Registry of Births and Deaths. (1981). Report on registration of births and deaths. Republic of Singapore.
Chicago-viite (17. p.)Singapore. Registry of Births and Deaths. Report on Registration of Births and Deaths. Singapore: Republic of Singapore, 1981.
MLA-viite (8. p.)Singapore. Registry of Births and Deaths. Report on Registration of Births and Deaths. Republic of Singapore, 1981.
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