Calzada, I. (2016). Smart city: Definition & case studies. Oxford Programme for the Future of Cities.
Chicago-čujuhus (17. p.)Calzada, I. Smart City: Definition & Case Studies. Oxford Programme for the Future of Cities, 2016.
MLA-čujuhus (9. p.)Calzada, I. Smart City: Definition & Case Studies. Oxford Programme for the Future of Cities, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.