Foster, D. W. (1972). Planning for products and markets. Longman.
シカゴスタイル引用形Foster, Douglas W. Planning for Products and Markets. London: Longman, 1972.
MLA引用形式Foster, Douglas W. Planning for Products and Markets. Longman, 1972.
警告: この引用は必ずしも正確ではありません.