APA-viite (7. p.)
ebrary, Inc. (2003). Safe abortion: Technical and policy guidance for health systems. World Health Organization.
Chicago-viite (17. p.)
ebrary, Inc. Safe Abortion: Technical and Policy Guidance for Health Systems. Geneva: World Health Organization, 2003.
MLA-viite (9. p.)
ebrary, Inc. Safe Abortion: Technical and Policy Guidance for Health Systems. World Health Organization, 2003.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.