Cita APA (7a ed.)

Black, D. A. (2006). Ruby for rails: Ruby techniques for rails developers. Manning.

Cita Chicago Style (17a ed.)

Black, David A. Ruby for Rails: Ruby Techniques for Rails Developers. Greenwich: Manning, 2006.

Cita MLA (9a ed.)

Black, David A. Ruby for Rails: Ruby Techniques for Rails Developers. Manning, 2006.