Perreault, W. D. J., Cannon, J. P., & McCarthy, E. J. (2017). Essentials of marketing: A marketing strategy planning approach (15 edition.). McGraw-Hill Education.
Lua i Stíl Chicago (17ú heag.)Perreault, William D. Jr, Joseph P. Cannon, agus E. Jerome McCarthy. Essentials of Marketing: A Marketing Strategy Planning Approach. 15 edition. New York, NY: McGraw-Hill Education, 2017.
Lua MLA (9ú heag.)Perreault, William D. Jr, et al. Essentials of Marketing: A Marketing Strategy Planning Approach. 15 edition. McGraw-Hill Education, 2017.
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