APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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