APA (7th ed.) Citation

Livi Bacci, M., De Nardi Ipsen, C., & Ipsen, C. (2000). The population of Europe: A history. Blackwell.

Chicago Style (17th ed.) Citation

Livi Bacci, Massimo, Cynthia De Nardi Ipsen, and Carl Ipsen. The Population of Europe: A History. Oxford [etc.]: Blackwell, 2000.

MLA (9th ed.) Citation

Livi Bacci, Massimo, et al. The Population of Europe: A History. Blackwell, 2000.