Birn,J Robin. (1999). The effective use of market research: A guide for management to grow the business (3.). Kogan Page Ltd.
शिकागो स्टाइल उद्धरणBirn,J Robin. The Effective Use of Market Research: A Guide for Management to Grow the Business. 3. London: Kogan Page Ltd, 1999.
एमएलए उद्धरणBirn,J Robin. The Effective Use of Market Research: A Guide for Management to Grow the Business. 3. Kogan Page Ltd, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.