Allen, D. (2015). Getting things done: The art of stress-free productivity (Revised edition.). Penguin Books.
Style de citation Chicago (17e éd.)Allen, David. Getting Things Done: The Art of Stress-free Productivity. Revised edition. New York, New York: Penguin Books, 2015.
Style de citation MLA (8e éd.)Allen, David. Getting Things Done: The Art of Stress-free Productivity. Revised edition. Penguin Books, 2015.
Attention : ces citations peuvent ne pas être correctes à 100%.