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![](./images/clear.gif) 1.- GEOLOGY AND MINERAL DEPOSITS OF THE VENEZUELAN GUAYANA SHIELD
U. S. GEOLOGICAL SURVEY; RESTON, VA; USA; UNITED STATES, 1995
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![](./images/clear.gif) 2.- GEOLOGY OF THE TOMI GOLD DEPOSIT, EL CALLAO GOLD DISTRICT, ESTADO BOLIVAR, VENEZUELA
1995
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