APA (7th ed.) Citation

Barraca, J. P. S., Matos, A., & Aguiar, R. L. (2011). User centric community clouds.

Chicago Style (17th ed.) Citation

Barraca, João Paulo Silva, Alfredo Matos, and Rui Luís Aguiar. User Centric Community Clouds. 2011.

MLA (8th ed.) Citation

Barraca, João Paulo Silva, et al. User Centric Community Clouds. 2011.