APA (7th ed.) Citation

Marakakis, I., Siolas, A., & Chatzichristos, T. N. Town Centricity Model – Delimiting the center of Athens, Greece. European Association of Geographers.

Chicago Style (17th ed.) Citation

Marakakis, Ioannis, Angelos Siolas, and Thomas N. Chatzichristos. Town Centricity Model – Delimiting the Center of Athens, Greece. European Association of Geographers.

MLA (9th ed.) Citation

Marakakis, Ioannis, et al. Town Centricity Model – Delimiting the Center of Athens, Greece. European Association of Geographers.

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