Kash, D. E. (1989). Perpetual innovation: The new world of competition. United States: BasicBooks.
シカゴスタイル引用形Kash, Don E. Perpetual Innovation: The New World of Competition. United States: BasicBooks, 1989.
MLA引用形式Kash, Don E. Perpetual Innovation: The New World of Competition. United States: BasicBooks, 1989.
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