APA (7th ed.) Citation

Smith, W. A. (2014). Vicious circle. Pan Books.

Chicago Style (17th ed.) Citation

Smith, Wilbur A. Vicious Circle. London [u.a.]: Pan Books, 2014.

MLA (9th ed.) Citation

Smith, Wilbur A. Vicious Circle. Pan Books, 2014.

Warning: These citations may not always be 100% accurate.