Staying alive

Staying alive

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To give a four-figure map reference (often referred to as a grid reference) always write down the number of the vertical grid line immediately ... These four figures refer to the grid square immediately to the right of grid line 67 and immediately above grid line 52. ... However, it can be used only if the feature you are at is the only feature of that type 37 38 39 40 41 Using a romer. within the 1-kilometre square.

Title:Staying alive
Author:Ron Reid Daly
Publisher: - 1990-12-01


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