APA-čujuhus (7. p.)
Clay, J. (2003). Selling solutions: How to test, monitor and constantly improve your selling skills. Thorogood.
Chicago-čujuhus (17. p.)
Clay, Julian. Selling Solutions: How to Test, Monitor and Constantly Improve Your Selling Skills. London: Thorogood, 2003.
MLA-čujuhus (9. p.)
Clay, Julian. Selling Solutions: How to Test, Monitor and Constantly Improve Your Selling Skills. Thorogood, 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.