APA (7e ed.) Bronvermelding

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 (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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.