Headrick, D. R. (1981). The tools of empire: Technology and European imperialism in the nineteenth century. Oxford: Oxford University Press.
シカゴスタイル引用形Headrick, Daniel R. The Tools of Empire: Technology and European Imperialism in the Nineteenth Century. Oxford: Oxford University Press, 1981.
MLA引用形式Headrick, Daniel R. The Tools of Empire: Technology and European Imperialism in the Nineteenth Century. Oxford: Oxford University Press, 1981.
警告: この引用は必ずしも正確ではありません.