APA (7th ed.) Citation

Solsona Ribes, R., & Villa Fernández, G. (2011). GeoTrip.

Chicago Style (17th ed.) Citation

Solsona Ribes, Roger, and Guillem Villa Fernández. GeoTrip. 2011.

MLA (9th ed.) Citation

Solsona Ribes, Roger, and Guillem Villa Fernández. GeoTrip. 2011.

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