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Fuentes Bibliográficas<br />
https://water.usgs.gov/gotita/wudo.html<br />
http://contaminacionderiosyarroyos.blogspot.mx/2010/08/principales-contaminantes.html<br />
http://osmovic.com.ar/tratamiento-de-agua-para-el-hogar/<br />
http://www.exploradores.org.pe/hidrocarburos/los-hidrocarburos-en-la-vida-cotidiana.html<br />
http://www.monografias.com/trabajos21/petroleo-y-medio/petroleo-y-medio.shtml<br />
https://www.youtube.com/watch?v=1OhBAY-eF48<br />
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