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Historia económica de la Argentina : 1850-1930 by Ortíz, Ricardo M, 1892-1961. Material type:  Text Language: Spanish Publisher: Buenos Aires : Plus Ultra, 1971Availability: Items available for loan: Biblioteca Central UNNECall number: 33(091) O77 h/1 ej.1 (1).
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Historia económica de la Argentina : 1850-1930 by Ortíz, Ricardo M, 1892-1961. Material type: Text Language: Spanish Publisher: Buenos Aires : Plus Ultra, 1971Availability: Items available for loan: Biblioteca Central UNNECall number: 33(091) O77 h/2 ej.9 (1).
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Valor económico de los puertos argentinos by Ortíz, Ricardo M, 1892-1961. Material type: Text Language: Spanish Publisher: Buenos Aires : Losada, [c1943]Availability: Items available for loan: Biblioteca Central UNNECall number: 33(091) O77 v ej.1 (1).
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El ferrocarríl en la economía Argentina by Ortíz, Ricardo M, 1892-1961. Edition: 2a ed. act.Material type: Text Language: Spanish Publisher: Buenos Aires : Cátedra Lisandro de La Torre, 1958Availability: Items available for loan: Biblioteca Central UNNECall number: 385 O77 f ej.2 (1).
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