APA (7 वां संस्करण) प्रशस्ति पत्र

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

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

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

एमएलए (8वां संस्करण) प्रशस्ति पत्र

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