Bauer, C. (2011). Sales Mastery. Penguin Books.
Chicago-čujuhus (17. p.)Bauer, Chuck. Sales Mastery. New Delhi: Penguin Books, 2011.
MLA-čujuhus (9. p.)Bauer, Chuck. Sales Mastery. Penguin Books, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.