Kellerman, J. (2003). A cold heart (First edition.). Ballantine books.
Chicago-čujuhus (17. p.)Kellerman, Jonathan. A Cold Heart. First edition. New York: Ballantine books, 2003.
MLA-čujuhus (9. p.)Kellerman, Jonathan. A Cold Heart. First edition. Ballantine books, 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.