Wingo, P. A. (1994). An epidemiologic approach to reproductive health. World Health Organization.
Chicago-viite (17. p.)Wingo, Phyllis A. An Epidemiologic Approach to Reproductive Health. Geneva: World Health Organization, 1994.
MLA-viite (9. p.)Wingo, Phyllis A. An Epidemiologic Approach to Reproductive Health. World Health Organization, 1994.
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