APA (7th ed.) Zitazioa
Allen, D. (2015). Getting Things Done: The Art of Stress-Free Productivity. Piatkus.
Chicago Style (17th ed.) Zitazioa
Allen, David. Getting Things Done: The Art of Stress-Free Productivity. London: Piatkus, 2015.
MLA (9th ed.) Zitazioa
Allen, David. Getting Things Done: The Art of Stress-Free Productivity. Piatkus, 2015.
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