Drucker, P. F. (1993). Managing for the future: The 1990s and beyond. McGraw -Hill.
シカゴスタイル引用形Drucker, Peter F. Managing for the Future: The 1990s and Beyond. New Delhi: McGraw -Hill, 1993.
MLA引用形式Drucker, Peter F. Managing for the Future: The 1990s and Beyond. McGraw -Hill, 1993.
警告: この引用は必ずしも正確ではありません.