Black, D. A. (2015). Ruby programming: The well-grounded Rubyist (2nd ed.). Dreamtech.
Citación estilo ChicagoBlack, David A. Ruby Programming: The Well-grounded Rubyist. 2nd ed. New Delhi: Dreamtech, 2015.
Cita MLABlack, David A. Ruby Programming: The Well-grounded Rubyist. 2nd ed. Dreamtech, 2015.
Warning: These citations may not always be 100% accurate.