APA (7th ed.) Citation

Marshall, K., Pytel, C., & Yurek, J. (2007). Pro Active Record: Databases with Ruby and Rails. Apress.

Chicago Style (17th ed.) Citation

Marshall, Kevin, Chad Pytel, and Jon Yurek. Pro Active Record: Databases with Ruby and Rails. Berkeley, CA: Apress, 2007.

MLA (8th ed.) Citation

Marshall, Kevin, et al. Pro Active Record: Databases with Ruby and Rails. Apress, 2007.