Cita APA (7a ed.)

Brown, G. (2009). Ruby Best Practices (1st edition.). O'Reilly Media, Inc.

Cita Chicago Style (17a ed.)

Brown, Gregory. Ruby Best Practices. 1st edition. O'Reilly Media, Inc, 2009.

Cita MLA (9a ed.)

Brown, Gregory. Ruby Best Practices. 1st edition. O'Reilly Media, Inc, 2009.