ASPELUND, K. (2006). The design process. Fairchild Publishers.
Chicago-čujuhus (17. p.)ASPELUND, Karl. The Design Process. Fairchild Publishers, 2006.
MLA-čujuhus (9. p.)ASPELUND, Karl. The Design Process. Fairchild Publishers, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.