Perhaps you should try some spelling variations:
"Argentina Política y gobierno 1810-1973." » "Argentina Política y gobierno 1906-1973." (Expand Search), "Argentina Política de gobierno 1810-1973." (Expand Search)
politica y » politica de (Expand Search)
"Argentina Política y gobierno 1820-1973." » "Argentina Política de gobierno 1820-1973." (Expand Search)

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