Allen D. David. (2006). Getting Things Done. Now to achieve stress-free Productivity. London, Piatkus, 2006.
Chicagoスタイル(17版)引用形式Allen D. David. Getting Things Done. Now to Achieve Stress-free Productivity. London, Piatkus, 2006, 2006.
MLA(9版)引用形式Allen D. David. Getting Things Done. Now to Achieve Stress-free Productivity. London, Piatkus, 2006, 2006.
警告: この引用は必ずしも正確ではありません.