En
Ru
| Description |
Air defense of the object / Druzhininsky, I.M. - Pyatigorsk: Ordzhonikidzeskoye Regional Publishing House, 1941. -605: people, memory of a great victory..Electronic copy source: Stavropol Kunb
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| Publisher | Пятигорск : Орджоникидзевское краевое изд-во |
