Z. Department ZM,
«Guidelines for reporting». Zambia, Department of Water Affairs, Lusaka, Zambia, p. 14, xii p., 1989.
IRC International Water and Sanitation Centre, The Hague, NL y ZM, Z. Department,
«Report on the short course on preparation and production of guidelines and other communication materials, held in Lusaka 25-28 July 1989». Zambia, Department of Water Affairs, Lusaka, Zambia, p. 36 p.: photogr., 1989.
WHO -Geneva, CH, World Health Organization y ZM, Z. Department,
«Sub-regional working group meeting on cost recovery and resources coverage : Mongu, Western Province, Zambia, 30 January - 3 February 1989 : working group report». Zambia, Department of Water Affairs, Lusaka, Zambia, p. v, 21 p., 1989.