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Technological change in Potosí : the silver boom of the 1570's
Bakewell, P. J., (1977)
The Paradox of a metal standard : a case history of silver
Murad, Anatol, (1939)
Economic relations of silver to other metals in argentiferous ores
Merrill, Charles White, (1930)
Annual report / Handy & Harman
(1966)