Fisher, A. (2001). Critical Thinking. Cambridge University Press.
Chicago-čujuhus (17. p.)Fisher, Alec. Critical Thinking. New Delhi: Cambridge University Press, 2001.
MLA-čujuhus (9. p.)Fisher, Alec. Critical Thinking. Cambridge University Press, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.