APA (7e ed.) Bronvermelding
Allen, D. (2015). Getting Things Done: The Art of Stress-Free Productivity. Piatkus.
Chicago (17e ed.) Bronvermelding
Allen, David. Getting Things Done: The Art of Stress-Free Productivity. London: Piatkus, 2015.
MLA (9e ed.) Bronvermelding
Allen, David. Getting Things Done: The Art of Stress-Free Productivity. Piatkus, 2015.
Let op: Deze citaties zijn niet altijd 100% accuraat.