Engel, J. F. (1972). Market Segmentation. Holt Rine hart and Winston.
Čikaški stil citiranjaEngel, James F. Market Segmentation. New york: Holt Rine hart and Winston, 1972.
MLA način citiranjaEngel, James F. Market Segmentation. Holt Rine hart and Winston, 1972.
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