World Health Organization. (2002). Proceedings of third global symposium on health and welfare systems development in the 21st century. World Health Organization.
Chicago-viite (17. p.)World Health Organization. Proceedings of Third Global Symposium on Health and Welfare Systems Development in the 21st Century. Japan: World Health Organization, 2002.
MLA-viite (8. p.)World Health Organization. Proceedings of Third Global Symposium on Health and Welfare Systems Development in the 21st Century. World Health Organization, 2002.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.