Shurter, R. L. (1966). Critical thinking. McGraw-Hill.
Chicago-čujuhus (17. p.)Shurter, Robert L. Critical Thinking. New York: McGraw-Hill, 1966.
MLA-čujuhus (9. p.)Shurter, Robert L. Critical Thinking. McGraw-Hill, 1966.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.