Bearden, W. O. O. (2007). Marketing: Principles & Pesspectives (5th.). McGraw-Hill Publ.
Dyfyniad Arddull ChicagoBearden, William O.& Others. Marketing: Principles & Pesspectives. 5th. Boston: McGraw-Hill Publ, 2007.
Dyfyniad MLABearden, William O.& Others. Marketing: Principles & Pesspectives. 5th. McGraw-Hill Publ, 2007.
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