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![](./images/clear.gif) 1.- ALFRED WILLIAMS AND LEO DAFT: PIONEERS IN GEOPHYSICAL PROSPECTION
INSTITUTO GEOLOGICO Y MINERO DE ESPAÑA; MADRID; ESP, 2011
HISTORY OF RESEARCH IN MINERAL RESOURCES
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![](./images/clear.gif) 2.- THE LINARES LEAD MINING DISTRICT: THE ENGLISH CONNECTION
2009
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