APA-čujuhus (7. p.)
Varis, L. (2011). Mastering exposure and the zone system for digital photographers. Course Technology PTR.
Chicago-čujuhus (17. p.)
Varis, Lee. Mastering Exposure and the Zone System for Digital Photographers. Boston, Mass., U.S.A.: Course Technology PTR, 2011.
MLA-čujuhus (9. p.)
Varis, Lee. Mastering Exposure and the Zone System for Digital Photographers. Course Technology PTR, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.