(2009). Ruby phrasebook: Essential code and commands / by Jason Clinton.
Chicago-čujuhus (17. p.)Ruby Phrasebook: Essential Code and Commands / by Jason Clinton. 2009.
MLA-čujuhus (9. p.)Ruby Phrasebook: Essential Code and Commands / by Jason Clinton. 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.