McDonald, M. Marketing Accountability. Kogan Page.
Chicago-čujuhus (17. p.)McDonald, Malcolm. Marketing Accountability. Kogan Page.
MLA-čujuhus (9. p.)McDonald, Malcolm. Marketing Accountability. Kogan Page.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.