Mandel, S. (1988). Effective presentation skills. Kogan Page.
Chicago-čujuhus (17. p.)Mandel, Steve. Effective Presentation Skills. London: Kogan Page, 1988.
MLA-čujuhus (9. p.)Mandel, Steve. Effective Presentation Skills. Kogan Page, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.