APA (7th ed.) Citation

Franchetti, A., Caruso, E., & Cottone, S. Germania: Studenti, udite.

Chicago Style (17th ed.) Citation

Franchetti, Alberto, Enrico Caruso, and Salvatore Cottone. Germania: Studenti, Udite.

MLA (9th ed.) Citation

Franchetti, Alberto, et al. Germania: Studenti, Udite.