Citazione Stile APA (7a Edizione)

Black, D. A. (2015). Ruby programming: The well-grounded Rubyist (2nd ed.). Dreamtech.

Citazione stile Chigago Style (17a edizione)

Black, David A. Ruby Programming: The Well-grounded Rubyist. 2nd ed. New Delhi: Dreamtech, 2015.

Citatione MLA (9a ed.)

Black, David A. Ruby Programming: The Well-grounded Rubyist. 2nd ed. Dreamtech, 2015.