Brown,Tim, & Katz,Barry. (2009). Change by design. Harper collins.
Chicago-čujuhus (17. p.)Brown,Tim, juo Katz,Barry. Change by Design. New York: Harper collins, 2009.
MLA-čujuhus (9. p.)Brown,Tim, juo Katz,Barry. Change by Design. Harper collins, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.