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Forced labor --- Indians of South America --- Indians of South America --- Silver mines and mining --- History --- Employment --- History --- Government relations --- History --- Potosí (Bolivia : Department) --- Spain --- Economic conditions. --- Colonies --- Administration.

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Algebra --- Algèbre --- Driehoeksmeting --- Géométrie --- Meetkunde --- Trigonométrie --- Trigonometry --- Geometry, Analytic --- Géométrie analytique --- Algèbre. --- Trigonométrie. --- Géométrie analytique. --- Trigonometry. --- Algèbre. --- Trigonométrie. --- Géométrie analytique.

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