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Aircraft Noise : eight Airports' Efforts to Mitigate Noise | Hefte | 363.747379 Air (Boks 45)
United States General Accounting Office (GAO) / - Washington, D. C. : GAO/RCED, 1989. [Hefte]. - 86 s. - Språk: Engelsk | United States General Accounting Office (GAO) | 1989 |
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Reducing Risks to Military Aircraft from Bird Collisions : test and evaluation | Hefte | 363.124 Red (Publikasjon)
United States General Accounting Office (GAO). General accounting office / - Washington : GAO, 1989. [Hefte]. - 26 s. (GAO/NSLAD-89-127) - Språk: Engelsk | United States General Accounting Office (GAO) | 1989 |