[1] United Nations Office on Drugs and Crime and Government of Peru. Reports on coca cultivation surveys from 2001 to 2006 http://www.unodc.org/unodc/en/crop-monitoring/index.html
[2] Geographic Information System: computer software for processing and visualizing geographic information.
[3] Global Positioning System: a group of 24 satellites for determining geographic locations using ground receivers.
[4]
A digital geographic database is being prepared with high resolution
interactive maps and images, as part of an ongoing long run project that
will require continuous updating (SEANTEC 2007).
[6] Ministerio de Comercio Exterior y Turismo. The statistical information available in the Internet is under process of reconstruction as can be seen in www.mincetur.gob.pe/turismo/ESTADISTICA/estadisticas.htm .
[7] ACPC: Asociación para
la Conservación del Patrimonio de Cutivireni.
(www.geocities.com/acpcweb/who.htm)
[8] http://www.world-waterfalls.com/
[9] Instituto Nacional de Recursos Naturales. Website: www.inrena.gob.pe .
[10]
Minister of Development and Public Works from 1959 to 1960,
period in which he hired the Canadian Surveying company for
studying the Ene river basin in the context of his Peru-Via
Plan for the region.
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