Cita APA (7a ed.)

Hartl, M. (2022). Learn enough Ruby to be dangerous: Write programs, publish gems, and develop Sinatra web apps with Ruby ([First edition].). Addison-Wesley.

Cita Chicago Style (17a ed.)

Hartl, Michael. Learn Enough Ruby to Be Dangerous: Write Programs, Publish Gems, and Develop Sinatra Web Apps with Ruby. [First edition]. Boston: Addison-Wesley, 2022.

Cita MLA (8a ed.)

Hartl, Michael. Learn Enough Ruby to Be Dangerous: Write Programs, Publish Gems, and Develop Sinatra Web Apps with Ruby. [First edition]. Addison-Wesley, 2022.