APA (7th ed.) Citation

Roberts, J. M. (1996). A history of Europe (1. publ.). Helicon.

Chicago Style (17th ed.) Citation

Roberts, John M. A History of Europe. 1. publ. Oxford: Helicon, 1996.

MLA (9th ed.) Citation

Roberts, John M. A History of Europe. 1. publ. Helicon, 1996.