Global Forum of the Water Supply and Sanitation Collaborative Council, Oslo, 18-20 September 1991 : working sessions` reports. 

 - 2v. 
<br/><br/> LIB has: volume 1. Main report ; volume 2. Working sessions' reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sanitation<br/>Water supply