Cita APA (7th ed.)

Preston, D. J., & Spezi, M. (2008). The monster of Florence. Virgin Books.

Cita Chicago (17th ed.)

Preston, Douglas J., i Mario Spezi. The Monster of Florence. London: Virgin Books, 2008.

Cita MLA (9th ed.)

Preston, Douglas J., i Mario Spezi. The Monster of Florence. Virgin Books, 2008.