Valenzuela, A. (1980). A resourcebook on guidance and counseling for voluntary surgical sterilization. Population Center Foundation.
Lua i Stíl Chicago (17ú heag.)Valenzuela, Amanda. A Resourcebook on Guidance and Counseling for Voluntary Surgical Sterilization. Manila: Population Center Foundation, 1980.
Lua MLA (9ú heag.)Valenzuela, Amanda. A Resourcebook on Guidance and Counseling for Voluntary Surgical Sterilization. Population Center Foundation, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.