BOYD, H. W. (1972). Marketing Research Text And Cases Harper W. Boyd And Ralph Westfall. Richard D. Irwin.
Čikaški stil citiranja (17. izdanje)BOYD, Herper W. Marketing Research Text And Cases Harper W. Boyd And Ralph Westfall. Richard D. Irwin, 1972.
MLA način citiranja (8. izdanje)BOYD, Herper W. Marketing Research Text And Cases Harper W. Boyd And Ralph Westfall. Richard D. Irwin, 1972.
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