T. Bondelid,
« DEMDESS 1994 summary report », vol. no. 441. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xi, 92 p.: 21 fig., 1994.
D. Abbott, Bierck, B. R., et Ogden, D. A.,
« Wastewater treatment plant process control training in Romania », vol. no. 452. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xv, 58 p.: 1 map, 1994.
H. Wihuri,
« Water, sanitation and environment : exposure visit and seminar : 3 - 14 October 1994 : objective, methodology, programme and material : descriptive report ». IRC, The Hague, The Netherlands, p. ca. 500 p.: fig., maps, tab., 1994.