a technical and economic appraisal Kalbermatten, John M. text Baltimore Published for the World Bank [by] the Johns Hopkins University Press c1982 monographic xiii, 160 p. : ill. ; 28 cm. John M. Kalbermatten ... [et al.]. Includes index. 0 0 0 328_109172400000000_KAL Sanitary engineering Developing countries 328.1091724 KAL 0801825849 (pbk.) :