APA (7th ed.) Citation

Flanagan, D., & Matsumoto, Y. (2008). The Ruby programming language (First edition.). O'Reilly.

Chicago Style (17th ed.) Citation

Flanagan, David, and Yukihiro Matsumoto. The Ruby Programming Language. First edition. Beijing: O'Reilly, 2008.

MLA (9th ed.) Citation

Flanagan, David, and Yukihiro Matsumoto. The Ruby Programming Language. First edition. O'Reilly, 2008.

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