Lucas, S. (1983). The art of public speaking. Random House.
Chicago-čujuhus (17. p.)Lucas, Stephen. The Art of Public Speaking. New York: Random House, 1983.
MLA-čujuhus (9. p.)Lucas, Stephen. The Art of Public Speaking. Random House, 1983.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.