Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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