BACON, M. S. (1994). Do-it-yourself Direct Marketing: Secrets For Small Business. John Wiley and Sons.
Chicago-viite (17. p.)BACON, Mark S. Do-it-yourself Direct Marketing: Secrets For Small Business. John Wiley and Sons, 1994.
MLA-viite (8. p.)BACON, Mark S. Do-it-yourself Direct Marketing: Secrets For Small Business. John Wiley and Sons, 1994.
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