00643nam a2200157 a 4500 ASINB0006XTRCI 20140916180925.0 140916s1980 xxu eng d Kalbermatten, John M. Appropriate technology for water supply and sanitation : technical and economic options / John M Kalbermatten. [S.l.] : World Bank, 1980. 134 p. Appropriate technology for water supply and waste disposal. Appropriate technology for water supply and waste disposal. Amazon.com http://www.amazon.com/exec/obidos/ASIN/B0006XTRCI/chopaconline-20 9946 9946 0 0 0 0 QUESTCL QUESTCL 2014-09-16 0 KAL D449 2014-09-16 00:00:00 2014-09-16 BK