APA (7th ed.) Citation

Velasco, I., Spence, C., & Navarra, J. (2011). The perceptual system: That little time-machine.

Chicago Style (17th ed.) Citation

Velasco, I., C. Spence, and J. Navarra. The Perceptual System: That Little Time-machine. 2011.

MLA (9th ed.) Citation

Velasco, I., et al. The Perceptual System: That Little Time-machine. 2011.