Cita APA (7a ed.)

Black, D. A., & Leo, J. (2019). The well-grounded Rubyist (Third edition.). Manning Publications Co..

Cita Chicago Style (17a ed.)

Black, David A., y Joseph Leo. The Well-grounded Rubyist. Third edition. Shelter Island, NY: Manning Publications Co., 2019.

Cita MLA (8a ed.)

Black, David A., y Joseph Leo. The Well-grounded Rubyist. Third edition. Manning Publications Co., 2019.