World Health Organization. (2012). Safe abortion: Technical and policy guidance for health systems (2nd ed.). World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization. Safe Abortion: Technical and Policy Guidance for Health Systems. 2nd ed. Geneva: World Health Organization, 2012.
Citatione MLA (8a ed.)World Health Organization. Safe Abortion: Technical and Policy Guidance for Health Systems. 2nd ed. World Health Organization, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.