The World Bank. (2004). The handwashing handbook: A guide for developing a hygiene program to increase handwashing with soap. Washington, D.C: The World Bank.
Trích dẫn kiểu ChicagoThe World Bank. The Handwashing Handbook: A Guide for Developing a Hygiene Program to Increase Handwashing With Soap. Washington, D.C: The World Bank, 2004.
Trích dẫn MLAThe World Bank. The Handwashing Handbook: A Guide for Developing a Hygiene Program to Increase Handwashing With Soap. Washington, D.C: The World Bank, 2004.
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