APA引文

World Health Organization. (2012). Safe abortion: Technical and policy guidance for health systems (2nd ed.). World Health Organization.

Chicago Style (17th ed.) Citation

World Health Organization. Safe Abortion: Technical and Policy Guidance for Health Systems. 2nd ed. Geneva: World Health Organization, 2012.

MLA引文

World Health Organization. Safe Abortion: Technical and Policy Guidance for Health Systems. 2nd ed. World Health Organization, 2012.

警告：這些引文格式不一定是100％准確.