APA引文

Ries, A. (2001). Positioning. Tata McGraw-Hill.

Chicago Style (17th ed.) Citation

Ries, Al. Positioning. New Delhi: Tata McGraw-Hill, 2001.

MLA引文

Ries, Al. Positioning. Tata McGraw-Hill, 2001.

警告：這些引文格式不一定是100％准確.