Duijn, J. J. V. (1983). The long wave in economic life. London: George Allen & Unwin.
シカゴスタイル引用形Duijn, J. J. Van. The Long Wave in Economic Life. London: George Allen & Unwin, 1983.
MLA引用形式Duijn, J. J. Van. The Long Wave in Economic Life. London: George Allen & Unwin, 1983.
警告: この引用は必ずしも正確ではありません.