(2009). Ruby phrasebook: Essential code and commands / by Jason Clinton.
Citazione stile Chigago Style (17a edizione)Ruby Phrasebook: Essential Code and Commands / by Jason Clinton. 2009.
Citatione MLA (9a ed.)Ruby Phrasebook: Essential Code and Commands / by Jason Clinton. 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.