The World Bank, & The International Bank for Reconstruction and Development. The handwashing handbook: A guide for developing a hygiene promotion program to increase handwashing with soap. Washington, DC 20433: The World Bank.
Chicago-tyylinen lähdeviittausThe World Bank, ja The International Bank for Reconstruction and Development. The Handwashing Handbook: A Guide for Developing a Hygiene Promotion Program to Increase Handwashing With Soap. Washington, DC 20433: The World Bank.
MLA-viiteThe World Bank, ja The International Bank for Reconstruction and Development. The Handwashing Handbook: A Guide for Developing a Hygiene Promotion Program to Increase Handwashing With Soap. Washington, DC 20433: The World Bank.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.