APA (7th ed.) Citation

Lipgens, W. (1982). A history of European integration. Clarendon [etc.].

Chicago Style (17th ed.) Citation

Lipgens, Walter. A History of European Integration. Oxford [etc.]: Clarendon [etc.], 1982.

MLA (9th ed.) Citation

Lipgens, Walter. A History of European Integration. Clarendon [etc.], 1982.