Collins, J. (2002). Built to Last. Collins Business.
Chicago-čujuhus (17. p.)Collins, James. Built to Last. Collins Business, 2002.
MLA-čujuhus (9. p.)Collins, James. Built to Last. Collins Business, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.