APA (7th ed.) Citation

Smith, J. D. (1994). X: A guide for users. PTR Prentice Hall.

Chicago Style (17th ed.) Citation

Smith, Jerry D. X: A Guide for Users. Englewood Cliffs, NJ: PTR Prentice Hall, 1994.

MLA (9th ed.) Citation

Smith, Jerry D. X: A Guide for Users. PTR Prentice Hall, 1994.