1997
D. Morgan,
Buzzing children, vol. Level 3. London, UK: Macmillan, 1997, p. 48 p. : ill.
H. Mengers y Edelman, D. J.,
«Capacity building for the urban environment». Institute for Housing and Urban Development Studies, Rotterdam, The Netherlands, p. x, 195 p. : 3 tab., 1997.
S. Lanka. Min LK,
«A case study : sustainable sanitation promotion». Sri Lanka, Ministry of Housing and Urban Development, Battaramulla, Sri Lanka, p. 10 p., 1997.
J. E. Gould,
«Catching up - upgrading Botswana's rainwater catchment systems»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 13, 19-20 : 2 fig., 1 map, 2 photogr., 1997.
B. J. Lloyd y Thorpe, T.,
«Catchment surveillance for water resource management»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 23-25 : 1 map, 3 photogr., 1997.
E. R. U. N. I. C. E. F. - Asmara,
«Children and women in Eritrea : 1996 : an update». UNICEF Regional Office for Eastern and Southern Africa, Nairobi, Kenya, p. iv, 35 p. : fig., photogr., tab., 1997.
V. Smil,
«China shoulders the cost of environmental change»,
Environment, pp. p. 6-9, 33-37 : 2. tab., photogr., 1997.
C. H. S. K. A. T. - St. Gallen,
«Choice of technology». SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. 28 p. : fig., tab., 1997.
CIDA -Gatineau, Que, CA, Canadian International Development Agency,
«CIDA's policy on meeting basic human needs». Canadian International Development Agency, CIDA, Hull, Que, Canada, p. 22 p. : 3 boxes, 1 fig., 1997.
E. C. Enkerlin, Cano, G., Garza, R. A., y Vogel, E.,
Ciencia ambiental y desarrollo sostenible. Mexico City, Mexico: S.n., 1997, p. 708 p. : tab., photos.