Tohutoro APA (7th ed.)
Etzel, M. J., Stanton, W. J., & Walker, B. J. (2007). Marketing (14th ed.). McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)
Etzel, Michael J., William J. Stanton, me Bruce J. Walker. Marketing. 14th ed. Boston, Mass.: McGraw-Hill, 2007.
Tohutoro MLA (9th ed.)
Etzel, Michael J., et al. Marketing. 14th ed. McGraw-Hill, 2007.
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