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Military Helicopters of the World : military rotary-wing aircraft since 1917 | Bok | 623.746047 P Polmar, Norman / - London : Arms & Armour Press, 1981. [Bok]. - 370 s. - Språk: Engelsk | Polmar, Norman | 1981 |
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The Naval Institute Guide to the Ships and Aircraft of the U.S. Fleet. | Bok | 623.74 Pol Polmar, Norman / - Maryland, USA : Naval Institute Press, 1997. [Bok]. - 580 s. - Språk: Engelsk | Polmar, Norman | 1997 |