Bowers, N. A. (2001). The multiple pregnancy sourcebook. Contemporary Books.
Lua i Stíl Chicago (17ú heag.)Bowers, Nancy A. The Multiple Pregnancy Sourcebook. Contemporary Books, 2001.
Lua MLA (8ú heag.)Bowers, Nancy A. The Multiple Pregnancy Sourcebook. Contemporary Books, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.