Tables for Azimuths, Great-Circle Sailing, and Reduction to the Meridian, With a New and Improved "Sumner" Method: Latitudes 900 N. to 900 S., Declina. Questo articolo non è disponibile.Tables for Azimuths, Great-Circle Sailing, and Reduction to the Meridian, With a New and Improved "Sumner" Method: Latitudes 900 N. to 900 S., Declina

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