Freeman, C. (1974). The economics of Industrial Innovation. England: Penguin Books.
シカゴスタイル引用形Freeman, Christopher. The Economics of Industrial Innovation. England: Penguin Books, 1974.
MLA引用形式Freeman, Christopher. The Economics of Industrial Innovation. England: Penguin Books, 1974.
警告: この引用は必ずしも正確ではありません.