Hepworth, M. E. (1989). Geography of the information economy. London: Belhaven Press.
シカゴスタイル引用形Hepworth, Mark E. Geography of the Information Economy. London: Belhaven Press, 1989.
MLA引用形式Hepworth, Mark E. Geography of the Information Economy. London: Belhaven Press, 1989.
警告: この引用は必ずしも正確ではありません.