Austrian Association for Gas and Water - OVGW Read more about Austrian Association for Gas and Water - OVGW
Food and Agriculture Organization of the United Nations: FAO Read more about Food and Agriculture Organization of the United Nations: FAO
Slovak Water-Management Enterprise (Slovenský vodohospodársky podnik, š.p., Banská Štiavnica, Slovakia) Read more about Slovak Water-Management Enterprise (Slovenský vodohospodársky podnik, š.p., Banská Štiavnica, Slovakia)
