Cita APA (7a ed.)

Hartl, M. (2020). Ruby on Rails Tutorial, 6th Edition (6th edition.). Addison-Wesley Professional.

Cita Chicago Style (17a ed.)

Hartl, Michael. Ruby on Rails Tutorial, 6th Edition. 6th edition. Addison-Wesley Professional, 2020.

Cita MLA (9a ed.)

Hartl, Michael. Ruby on Rails Tutorial, 6th Edition. 6th edition. Addison-Wesley Professional, 2020.