Cita APA (7a ed.)

Europan, Rebois, D., & Arroyo Zapatero, C. (2018). Productive cities/1: Europan 14 results. Europan Europe.

Cita Chicago Style (17a ed.)

Europan, Didier Rebois, y Carlos Arroyo Zapatero. Productive Cities/1: Europan 14 Results. Paris, France: Europan Europe, 2018.

Cita MLA (9a ed.)

Europan, et al. Productive Cities/1: Europan 14 Results. Europan Europe, 2018.