Cita APA (7a ed.)
Zikmund, W. G., & William G. (2003). Business research methods (7th ed.). Thompson South Western.
Cita Chicago Style (17a ed.)
Zikmund, William G., y William G. Business Research Methods. 7th ed. Oklahoma State Univesity.: Thompson South Western, 2003.
Cita MLA (9a ed.)
Zikmund, William G., y William G. Business Research Methods. 7th ed. Thompson South Western, 2003.
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