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- Language: English
- Year: 2012

- Author: William G. Zikmund, Barry J. Babin
- Language: English
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- Author: William G. Zikmund Barry J. Babin
- Language: Spanish
- Year: 2009

- Author: William G. Zikmund Barry J. Babin
- Language: English
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- Author: William G. Zikmund Barry J. Babin Jon C. Carr Mitch Griffin
- Language: English
- Year: 2009