En
Ru| Description |
On the error of the declension of the compass / Kruzenshtern I.F.- 1821. -Treaty 15-18 of 08 February 2018.Electronic copy source: PB
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| Description |
On the error of the declension of the compass / Kruzenshtern I.F.- 1821. -Treaty 15-18 of 08 February 2018.Electronic copy source: PB
|
|---|