APA (7th ed.) Citation

Thomas, D., Fowler, C., & Hunt, A. (2004). Programming Ruby : the pragmatic programmers' guide: The pragmatic programmers' guide (2nd ed.). Pragmatic Bookshelf.

Chicago Style (17th ed.) Citation

Thomas, David, Chad Fowler, and Andrew Hunt. Programming Ruby : The Pragmatic Programmers' Guide: The Pragmatic Programmers' Guide. 2nd ed. Raleigh, N.C.: Pragmatic Bookshelf, 2004.

MLA (9th ed.) Citation

Thomas, David, et al. Programming Ruby : The Pragmatic Programmers' Guide: The Pragmatic Programmers' Guide. 2nd ed. Pragmatic Bookshelf, 2004.

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