Birn,, R. (2004). Effective use of Market Research: How to drive and focus better business decisions (4th.). Kogan Page India Pvt Ltd.
Styl ChicagoBirn,, Robin. Effective Use of Market Research: How to Drive and Focus Better Business Decisions. 4th. New Delhi: Kogan Page India Pvt Ltd, 2004.
Citace podle MLABirn,, Robin. Effective Use of Market Research: How to Drive and Focus Better Business Decisions. 4th. Kogan Page India Pvt Ltd, 2004.
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