APA (7th ed.) Citation

Schwartz, J., & Retford, B. (2007). How to build an SMS service (1st edition.). O'Reilly.

Chicago Style (17th ed.) Citation

Schwartz, Jordan, and Brian Retford. How to Build an SMS Service. 1st edition. [Sebastopol, California]: O'Reilly, 2007.

MLA (9th ed.) Citation

Schwartz, Jordan, and Brian Retford. How to Build an SMS Service. 1st edition. O'Reilly, 2007.