APA Citation

Lytras, M. D., & Visvizi, A. Smart cities: Issues and challenges.

Chicago Style Citation

Lytras, Miltiadis D., and Anna Visvizi. Smart Cities: Issues and Challenges.

MLA Citation

Lytras, Miltiadis D., and Anna Visvizi. Smart Cities: Issues and Challenges.

Warning: These citations may not always be 100% accurate.