Leigh, A. (1999). The ultimate business presentation book. Random House.
Chicago-čujuhus (17. p.)Leigh, Andrew. The Ultimate Business Presentation Book. London: Random House, 1999.
MLA-čujuhus (9. p.)Leigh, Andrew. The Ultimate Business Presentation Book. Random House, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.