Singh, S., & Wulf, D. H. (2009). Abortion worldwide: A decade of uneven progress.
Lua i Stíl Chicago (17ú heag.)Singh, Susheela, agus Deirdre Hussain Wulf. Abortion Worldwide: A Decade of Uneven Progress. 2009.
Lua MLA (8ú heag.)Singh, Susheela, agus Deirdre Hussain Wulf. Abortion Worldwide: A Decade of Uneven Progress. 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.