Valenzuela, A. (1980). A resourcebook on guidance and counseling for voluntary surgical sterilization. Population Center Foundation.
Chicago-viite (17. p.)Valenzuela, Amanda. A Resourcebook on Guidance and Counseling for Voluntary Surgical Sterilization. Manila: Population Center Foundation, 1980.
MLA-viite (9. p.)Valenzuela, Amanda. A Resourcebook on Guidance and Counseling for Voluntary Surgical Sterilization. Population Center Foundation, 1980.
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