Drucker, P. F. (1965). Landmarks of tomorrow. New York: Harper & Row Publishers.
シカゴスタイル引用形Drucker, Peter Ferdinand. Landmarks of Tomorrow. New York: Harper & Row Publishers, 1965.
MLA引用形式Drucker, Peter Ferdinand. Landmarks of Tomorrow. New York: Harper & Row Publishers, 1965.
警告: この引用は必ずしも正確ではありません.