Biblio

« UN ariete hidraulico para el pueblo ». .

United Nations Departement of Public Information -New York, NY, US, « UN chronicle ». United Nations Department of Public Information, New York, NY, USA.

« UNCHS (Habitat) Settlement Infrastructure & Environment Programme waste & wastewater management paper ». UN-Habitat, United Nations Centre for Human Settlements, Nairobi, Kenya.

UNCRD Meeting Report Series. .

J. P. U. N. C. R. D. - Nagoya, « UNCRD newsletter ». United Nations Centre for Regional Development, Nagoya, Japan.

K. Probst, Hagmann, J., Fernandez, M., et Ashby, J., « Understanding participatory research in the context of natural resource management - paradigms, approaches and typologies », vol. No. 130. Overseas Development Institute, Agricultural Research & Extension Network, London, UK, p. 15 p. : 2 box., 1 tab.

Understanding technology series. .

UNDP Interregional Project INT/81/047. .

« UNDP Water Governance Facility at SIWI Issue Series ». .

UNDP-PPPUE -Johannesburg, ZA, Public Private Partnerships for the Urban Environment, « UNDP-PPPUE newsletter ». UNDP, Public Private Partnerships for the Urban Environment (PPPUE), Johannesburg, South Africa.

« UNEP environment library ». .

UNEP Environmental Management Guidelines. .

UNEP-WCMC biodiversity series. Cambridge, UK: UNEP World Conservation Monitoring Centre.

« Unesco sources ». UNESCO, Paris, France.

« UNESCO working series SC ». .

IHE -Delft, NL, International Institute for Infrastructural, Hydraulic and Environmental Engineering, « UNESCO-IHE alumni e-newsletter ». IHE (International Institute for Infrastructural, Hydraulic and Environmental Engineering), Delft, The Netherlands.

« Unicef 50 anos : Colombia ». .

T. H. U. N. I. C. E. F. Eas Bangkok, « UNICEF EAPRO WASH in schools monitoring package ». UNICEF East Asia and Pacific Regional Office, Bangkok, Thailand, p. 24 p.

N. L. Netherland Hague, « UNICEF e-mail nieuwsbrief ». UNICEF Nederlands Comite, The Hague, The Netherlands.

UNICEF -New York, NY, US, « UNICEF e-newsletter ». UNICEF, New York, NY, USA.

UNICEF - Guyana working paper series. .

UNICEF history series, monograph. .

UNICEF Occasional Papers Series. .

UNICEF policy reviews. .

« UNICEF promotion of sanitation ». .