Keulen, T. V. (1995). Flying with flight simulation: Be an expert. Het Spectrum.
シカゴスタイル引用形Keulen, Theo Van. Flying with Flight Simulation: Be an Expert. London: Het Spectrum, 1995.
MLA引用形式Keulen, Theo Van. Flying with Flight Simulation: Be an Expert. Het Spectrum, 1995.
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