Hurley, P. J. (1997). A concise introduction to logic (6th.). Wadsworth.
Chicago-čujuhus (17. p.)Hurley, Patrick J. A Concise Introduction to Logic. 6th. Belmont: Wadsworth, 1997.
MLA-čujuhus (9. p.)Hurley, Patrick J. A Concise Introduction to Logic. 6th. Wadsworth, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.