[30] C. MARKHAM, Proceedings of the Geographical Society, febbraio 1879.
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      [35] KAYE, Proceedings of the Geographical Society, aprile 1879.
      [36] A. CUNNINGHAM, Ancient Geography of India.
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      [38] Voyages en Perse, dans l'Afghanistan, le Béloutchistan et le Turkestan.
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      [41] FERRIER, opera citata.
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      [49] RAVERTY, opera citata.
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