APA-čujuhus (7. p.)
Klemens, B. (2006). Math you can't use: Patents, copyright, and software. Brookings Institution Press.
Chicago-čujuhus (17. p.)
Klemens, Ben. Math You Can't Use: Patents, Copyright, and Software. Washington, D.C.: Brookings Institution Press, 2006.
MLA-čujuhus (9. p.)
Klemens, Ben. Math You Can't Use: Patents, Copyright, and Software. Brookings Institution Press, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.