APA (7th ed.) Citation

Hartl, M. (2010). Ruby on Rails™ 3 Tutorial: Learn Rails™ by Example (1st edition.). Addison-Wesley Professional.

Chicago Style (17th ed.) Citation

Hartl, Michael. Ruby on Rails™ 3 Tutorial: Learn Rails™ by Example. 1st edition. Addison-Wesley Professional, 2010.

MLA (9th ed.) Citation

Hartl, Michael. Ruby on Rails™ 3 Tutorial: Learn Rails™ by Example. 1st edition. Addison-Wesley Professional, 2010.

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