APA (7th ed.) Citation

Silva, R. E., Iurgel, I. A., Santos, M., Branco, P., & Zagalo, N. (2011). Understanding virtual actors.

Chicago Style (17th ed.) Citation

Silva, Rogério Eduardo, Ido Aharon Iurgel, Manuel Santos, Pedro Branco, and Nelson Zagalo. Understanding Virtual Actors. 2011.

MLA (8th ed.) Citation

Silva, Rogério Eduardo, et al. Understanding Virtual Actors. 2011.