American Water Works Association annual conference and exposition 2009 : (ACE 09) : San Diego, California, USA : 14-18 June 2009. : American Water Works Association conf : ACE 09 universities forum : AWWA annual conference & exhibition 2009 : Jun 2009, San Diego, CA.
American Water Works Association annual conference and exposition 2009 : (ACE 09) : San Diego, California, USA : 14-18 June 2009. : American Water Works Association conf : ACE 09 universities forum : AWWA annual conference & exhibition 2009 : Jun 2009, San Diego, CA.