APA (7th ed.) Citation

Pereira, P., Matos, N., Grave, L., & Marcos, A. (2012). ARK multi-user.

Chicago Style (17th ed.) Citation

Pereira, Pedro, Nuno Matos, Luís Grave, and Adérito Marcos. ARK Multi-user. 2012.

MLA (8th ed.) Citation

Pereira, Pedro, et al. ARK Multi-user. 2012.