Cita APA (7a ed.)

Calzada, I. (2021). Smart city citizenship. Elsevier.

Cita Chicago Style (17a ed.)

Calzada, Igor. Smart City Citizenship. Amsterdam, Netherlands: Elsevier, 2021.

Cita MLA (8a ed.)

Calzada, Igor. Smart City Citizenship. Elsevier, 2021.