IWA Publishing Alliance House, 12 Caxton Street , London , SW1H 0QS United Kingdom Web: www.iwapublishing.com premium About Solutions industries Publications books magazines articles Latest news events Downloads Companies IWA Publishing Articles An observer's tribute An observer's tribute 0 Share Jun. 27, 2014 - By: Christina McCallum Courtesy of Courtesy of IWA Publishing Purchase Full article Customer comments No comments were found for An observer's tribute. Be the first to comment! Add your comment Publish your comment Great! comment successfully added!