Kelley & David. (1998). The Art of Reasoning (3rd ed.). W. W. Norton & Company.
Chicago-čujuhus (17. p.)Kelley juo David. The Art of Reasoning. 3rd ed. New York: W. W. Norton & Company, 1998.
MLA-čujuhus (9. p.)Kelley juo David. The Art of Reasoning. 3rd ed. W. W. Norton & Company, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.