Citazione Stile APA (7a Edizione)

Frenzel, J., & Viljasaar, R. (2016). Parallel Cities: For the smart city to really to become a city, it must open up new, usable, shared and public spaces - both in the virtual and physical realm. Estonia and Finland are trying to go new ways. Topos.

Citazione stile Chigago Style (17a edizione)

Frenzel, Jörn, e Regina Viljasaar. "Parallel Cities: For the Smart City to Really to Become a City, It Must Open Up New, Usable, Shared and Public Spaces - Both in the Virtual and Physical Realm. Estonia and Finland Are Trying to Go New Ways." Topos 2016.

Citatione MLA (8a ed.)

Frenzel, Jörn, e Regina Viljasaar. "Parallel Cities: For the Smart City to Really to Become a City, It Must Open Up New, Usable, Shared and Public Spaces - Both in the Virtual and Physical Realm. Estonia and Finland Are Trying to Go New Ways." Topos, 2016.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.