APA (7th ed.) Citation

Santos, C., Pedro, L., Ramos, F., & Moreira, A. (2012). Sapo Campus: What users really think about an institutionally supported PLE.

Chicago Style (17th ed.) Citation

Santos, Carlos, Luís Pedro, Fernando Ramos, and António Moreira. Sapo Campus: What Users Really Think About an Institutionally Supported PLE. 2012.

MLA (8th ed.) Citation

Santos, Carlos, et al. Sapo Campus: What Users Really Think About an Institutionally Supported PLE. 2012.