Department international economic and social affairs statistical office. (1992). The follow-up method in demographic sample surveys: An approach to measuring fertility mortality and migration. United nations.
Чикаго маягийн жагсаалтDepartment international economic and social affairs statistical office. The Follow-up Method in Demographic Sample Surveys: An Approach to Measuring Fertility Mortality and Migration. New York: United nations, 1992.
MLA ишлэлDepartment international economic and social affairs statistical office. The Follow-up Method in Demographic Sample Surveys: An Approach to Measuring Fertility Mortality and Migration. United nations, 1992.
Warning: These citations may not always be 100% accurate.