Allen, D. (2001). Getting Things Done. Penguin Books.
Chicago-čujuhus (17. p.)Allen, David. Getting Things Done. New Delhi: Penguin Books, 2001.
MLA-čujuhus (9. p.)Allen, David. Getting Things Done. Penguin Books, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.