1999
R. Jani,
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S. Wilson,
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M. Tounkara en Doffou, D.,
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“Annual review : 1999”,
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I. Palmer en Pegram, G. C.,
The applicability of shallow sewer systems in South Africa, vol. no. TT113/99. Pretoria, South Africa: Water Research Commission, WRC, 1999, p. ix, 51 p. : 7 fig., 8 tab., 6 photogr.
United Nations Economic and Social Commission for Western Asia -Beirut, LB, ESCWA,
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J. Carlsson, Eriksson-Baaz, M., Fallenius, A. M., en Lovgren, E.,
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T. Ningnoi,
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N. Hamid en Villareal, M. R.,
“Asian cities in the 21st century : contemporary approaches to municipal management. Volume II. Municipal management issues in South Asia : proceedings of a seminar in Lahore, Pakistan, 16-18 October 1997”. Asian Development Bank, Manila, Philippines, p. vii, 183 p. : fig., tab., 1999.
S. Huq en Hamid, N.,
“Asian cities in the 21st century : contemporary approaches to municipal management. Volume III. Reforming Dhaka city management : papers presented at a seminar in Dhaka, Bangladesh, 15-17 March 1998”. Asian Development Bank, Manila, Philippines, p. v, 89 p. : fig., tab., 1999.
R. Meissner, Seeger, J., Rupp, H., en Balla, H.,
“Assessing the impact of agricultural land use changes on water quality”,
Water science and technology, pp. p. 1-10 : 8 fig., 3 tab., 1999.
R. Carter, Howsam, P., en Tyrrel, S.,
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S. Sutton,
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