APA-Zitierstil (7. Ausg.)

Allen, D. (2015). Getting things done: The art of stress-free productivity (Rev. ed.). Penguin Books.

Chicago-Zitierstil (17. Ausg.)

Allen, David. Getting Things Done: The Art of Stress-free Productivity. Rev. ed. New York: Penguin Books, 2015.

MLA-Zitierstil (9. Ausg.)

Allen, David. Getting Things Done: The Art of Stress-free Productivity. Rev. ed. Penguin Books, 2015.