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.
Lua i Stíl Chicago (17ú heag.)Singh, Susheela, Jacqueline E. Darroch, Lori S. Ashford, agus Michael Vlassoff. Adding It Up: The Costs and Benefits of Investing in Family Planning and Maternal and New Born Health. GUTTMACHER INSTITUTE, 2012.
Lua MLA (8ú heag.)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.
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