BS ISO 24512:2007(2008) Activities relating to drinking water and wastewater services — Guidelines for the management of drinking water utilities and for the assessment of drinking water services
2008BS ISO 24512:2008 Activities relating to drinking water and wastewater services. Guidelines for the management of drinking water utilities and for the assessment of drinking water services
2008BS ISO 24512:2007 Activities relating to drinking water and wastewater services. Guidelines for the management of drinking water utilities and for the assessment of drinking water services