Birn,J Robin. (1999). The effective use of market research: A guide for management to grow the business (3.). Kogan Page Ltd.
Trích dẫn kiểu ChicagoBirn,J Robin. The Effective Use of Market Research: A Guide for Management to Grow the Business. 3. London: Kogan Page Ltd, 1999.
Trích dẫn MLABirn,J Robin. The Effective Use of Market Research: A Guide for Management to Grow the Business. 3. Kogan Page Ltd, 1999.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.