Cita APA (7a ed.)

Hartl, M. A. (2010). Ruby on rails 2.3 tutorial learn rails by example (1st edition.). Addison Wesley Professional.

Cita Chicago Style (17a ed.)

Hartl, Michael Author. Ruby on Rails 2.3 Tutorial Learn Rails by Example. 1st edition. [Place of publication not identified]: Addison Wesley Professional, 2010.

Cita MLA (9a ed.)

Hartl, Michael Author. Ruby on Rails 2.3 Tutorial Learn Rails by Example. 1st edition. Addison Wesley Professional, 2010.