Dyfyniad APA

Singh, S., & Wulf, D. H. (2009). Abortion worldwide: A decade of uneven progress.

Dyfyniad Arddull Chicago

Singh, Susheela, and Deirdre Hussain Wulf. Abortion Worldwide: A Decade of Uneven Progress. 2009.

Dyfyniad MLA

Singh, Susheela, and Deirdre Hussain Wulf. Abortion Worldwide: A Decade of Uneven Progress. 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.