APA (7th ed.) Citation

Gassmann, O., Bohm, J., & Palmie, M. (2019). Smart cities: Introducing digital innovation to cities. Emerald Publishing.

Chicago Style (17th ed.) Citation

Gassmann, Oliver, Jonas Bohm, and Maximilian Palmie. Smart Cities: Introducing Digital Innovation to Cities. United Kingdom: Emerald Publishing, 2019.

MLA (9th ed.) Citation

Gassmann, Oliver, et al. Smart Cities: Introducing Digital Innovation to Cities. Emerald Publishing, 2019.