(1994). Operation and maintenance of Urban water supply and sanitation systems: A guide for managers. World Health Organisation.
Style de citation ChicagoOperation and Maintenance of Urban Water Supply and Sanitation Systems: A Guide for Managers. Geneva: World Health Organisation, 1994.
Style de citation MLAOperation and Maintenance of Urban Water Supply and Sanitation Systems: A Guide for Managers. World Health Organisation, 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.