APA-referens (7:e uppl.)

Singh, S., Darroch, J. E., Ashford, L. S., & Vlassoff, M. (2012). Adding It Up: The costs and Benefits of Investing in family Planning and maternal and new born health. GUTTMACHER INSTITUTE.

Chicago-referens (17:e uppl.)

Singh, Susheela, Jacqueline E. Darroch, Lori S. Ashford, och Michael Vlassoff. Adding It Up: The Costs and Benefits of Investing in Family Planning and Maternal and New Born Health. GUTTMACHER INSTITUTE, 2012.

MLA-referens (8:e uppl.)

Singh, Susheela, et al. Adding It Up: The Costs and Benefits of Investing in Family Planning and Maternal and New Born Health. GUTTMACHER INSTITUTE, 2012.