Ries, A. (2001). Positioning (5th.). Wiley India Pvt. Ltd.
Chicago Style (17th ed.) CitationRies, Al. Positioning. 5th. New Delhi: Wiley India Pvt. Ltd, 2001.
MLA (9th ed.) CitationRies, Al. Positioning. 5th. Wiley India Pvt. Ltd, 2001.
Warning: These citations may not always be 100% accurate.