APA (7th ed.) Citation

Sousa, S., Mesquita, F., & Cabanes, D. (2015). Old war, new battle, new fighters!

Chicago Style (17th ed.) Citation

Sousa, S., FS Mesquita, and D. Cabanes. Old war, new battle, new fighters! 2015.

MLA (8th ed.) Citation

Sousa, S., et al. Old war, new battle, new fighters! 2015.