1.
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London : S. Paul, 1914 (Hazell, Watson and Viney, Ltd.)
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2.
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London : Chapman and Hall, 1859.
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3.
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Bologna : Presso Romagnoli-dall' Acqua, 1888 (Tipi Fava e Garagnani)
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4.
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Milano : Edoardo Sonzogno editore, 1883.
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5.
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New York : C. Scribner's Sons, 1904 (Ballantyne, Hanson & Co.)
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6.
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Paris : C. Lévy, 1886 (P. Mouillot)
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7.
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Torino : G. B. Paravia, [1901?]
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8.
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New York, Harper & Row [1965, c1961]
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