Cita APA (7a ed.)

Matsumoto, Y. (2002). Ruby in a nutshell: A desktop quick reference. O'Reilly.

Cita Chicago Style (17a ed.)

Matsumoto, Yukihiro. Ruby in a Nutshell: A Desktop Quick Reference. Sebastopol, CA: O'Reilly, 2002.

Cita MLA (8a ed.)

Matsumoto, Yukihiro. Ruby in a Nutshell: A Desktop Quick Reference. O'Reilly, 2002.