Hofmann Armin. (2015). Graphic Design Manual (6TH.). Niggler.
Chicago-čujuhus (17. p.)Hofmann Armin. Graphic Design Manual. 6TH. Switzerland: Niggler, 2015.
MLA-čujuhus (9. p.)Hofmann Armin. Graphic Design Manual. 6TH. Niggler, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.