APA-viite (7. p.)
Worthington, E. L. (1987). Counseling for unplanned pregnancy and infertility. Word Books.
Chicago-viite (17. p.)
Worthington, Everett L. Counseling for Unplanned Pregnancy and Infertility. Waco, Tex.: Word Books, 1987.
MLA-viite (9. p.)
Worthington, Everett L. Counseling for Unplanned Pregnancy and Infertility. Word Books, 1987.
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