مؤلف: Wolfram Hirner

الدعم

2 كتب إلكترونية بواسطة Wolfram Hirner

Helena Alegre & Jaime M. Baptista: Performance Indicators for Water Supply Services
The IWA Performance Indicator System for water services is now recognized as a worldwide reference. Since it first appearance in 2000, the system has been widely quoted, adapted and used in a large n …
PDF
الإنجليزية
DRM
€166.95
Helena Alegre & Jaime M. Baptista: Performance Indicators for Water Supply Services
The IWA Performance Indicator System for water services is now recognized as a worldwide reference. Since it first appearance in 2000, the system has been widely quoted, adapted and used in a large n …
PDF
الإنجليزية
DRM
€160.87