APA-čujuhus (7. p.)
Nigg, J. T. (2006). What causes ADHD?: Understanding what goes wrong and why. Guilford Press.
Chicago-čujuhus (17. p.)
Nigg, Joel T. What Causes ADHD?: Understanding What Goes Wrong and Why. New York: Guilford Press, 2006.
MLA-čujuhus (9. p.)
Nigg, Joel T. What Causes ADHD?: Understanding What Goes Wrong and Why. Guilford Press, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.