APA (7th ed.) Citation

List, H., Mollier, H., & Verschoyle, D. (1960). Rome. Cassell.

Chicago Style (17th ed.) Citation

List, Herbert, Hans Mollier, and Derek Verschoyle. Rome. London: Cassell, 1960.

MLA (9th ed.) Citation

List, Herbert, et al. Rome. Cassell, 1960.