Общие работы по всемирной истории
Surveying: A Manual of Practical Instruction in the Art of Plane Surveying, Including Plotting, Leveling, Triangulation, Line Running, Cross-Sectioning, Traversing, and Other Details of Field Work |
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Surveying: A Manual of Practical Instruction in the Art of Plane Surveying, Including Plotting, Leveling, Triangulation, Line Running, Cross-Sectioning, Traversing, and Other Details of Field Work |
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