Citazione Stile APA (7a Edizione)

Singh, S., Wulf, D., Hussain, R., Bankole, A., & Sedgh, G. (2012). Abortion Worldwide: A decade of uneven progress. GUTTMACHER INSTITUTE.

Citazione stile Chigago Style (17a edizione)

Singh, Susheela, Deirdre Wulf, Rubina Hussain, Akinrinola Bankole, e Gilda Sedgh. Abortion Worldwide: A Decade of Uneven Progress. GUTTMACHER INSTITUTE, 2012.

Citatione MLA (8a ed.)

Singh, Susheela, et al. Abortion Worldwide: A Decade of Uneven Progress. GUTTMACHER INSTITUTE, 2012.