Palmer, J. M. The Art of Radiometry. SPIE Digital Library.
Chicago-čujuhus (17. p.)Palmer, James M. The Art of Radiometry. SPIE Digital Library.
MLA-čujuhus (9. p.)Palmer, James M. The Art of Radiometry. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.