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1.- Artisanal gold mining; a trap of poverty and pollution BiTech Publishers; Vancouver, BC; CAN; Canada, 2009 Ver registro
2.- BUILDING CAPACITY IN SMALL-SCALE MINING COMMUNITIES; HEALTH, ECOSYSTEM SUSTAINABILITY, AND THE GLOBAL MERCURY PROJECT SPRINGER; NEW YORK; USA; UNITED STATES, 2005 Ver registro
3.- CALIFORNIA GOLD; THE GREAT GOLD RUSH BEGAN A BOOM THAT HAS LASTED 150 YEARS BEHN-MILLER PUBLISHERS; ENCINO, CA; USA; UNITED STATES, 1998 Ver registro
4.- Carbon sequestration in dryland soils FAO - Food and Agriculture Organization of the United Nations; Rome; ITA; Italy, 2004 Ver registro
5.- CORRELATION OF SHORELINES AFFECTED BY EARTH MOVEMENTS 1972 ASS. SENEGAL. ET. QUATERN. OUEST AFR., BULL. LIAISON!SENEGAL Ver registro
6.- DESGARRADO SUDAN. EXPLOTANDO EL PETROLEO, ESPERANDO LA PAZ 2003 Ver registro
7.- EL PARQUE NACIONAL DE ZAKOUMA (EL CHAD) 2003 Ver registro
8.- GEOCHEMICAL PROCESSES IN TROPICAL LANDSCAPES; ROLE OF THE SOIL COVERS SPRINGER; BERLIN; DEU; FEDERAL REPUBLIC OF GERMANY, 1997 SOILS AND SEDIMENTS; MINERALOGY AND GEOCHEMISTRY Ver registro
9.- INTENSIVE USE OF GROUNDWATER IN TRANSBOUNDARY AQUIFERS INSTITUTO GEOLOGICO Y MINERO DE ESPAÑA; MADRID; ESP, 2001 INTENSIVE USE OF GROUNDWATER. CHALLENGES AND OPPORTUNITIES Ver registro
10.- LA EXPLORACION GEOFISICA DE AGUAS SUBTERRANEAS EN PROYECTOS DE AGUA HUMANITARIA, RESULTADOS OBTENIDOS EN TRES CONTEXTOS HIDROGEOLOGICOS 2002 Ver registro
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