Robertson, A. (1770). Robertson's traverse tables: Or, tables of difference of latitude and departure: ... Originally applied to plane sailing; but now more particularly suited to the purposes of land surveying. printed for James Porter.
MLA CitationRobertson, Abram. Robertson's Traverse Tables: Or, Tables of Difference of Latitude and Departure: ... Originally Applied to Plane Sailing; but Now More Particularly Suited to the Purposes of Land Surveying. printed for James Porter, 1770.
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