Williamson, C. D. (1963). Executive operations technique. Prentice hall.
シカゴスタイル引用形Williamson, C. Don. Executive Operations Technique. New Jersey: Prentice hall, 1963.
MLA引用形式Williamson, C. Don. Executive Operations Technique. Prentice hall, 1963.
警告: この引用は必ずしも正確ではありません.