Allen, D. (2015). Getting things done: The art of stress-free productivity (Revised edition.). Penguin Books.
Chicago Style (17th ed.) CitationAllen, David. Getting Things Done: The Art of Stress-free Productivity. Revised edition. New York, New York: Penguin Books, 2015.
MLA引文Allen, David. Getting Things Done: The Art of Stress-free Productivity. Revised edition. Penguin Books, 2015.
警告：這些引文格式不一定是100％准確.