Cita APA (7a ed.)

Lipgens, W. (1985). Documents on the history of European integration. Walter de Gruyter.

Cita Chicago Style (17a ed.)

Lipgens, Walter. Documents on the History of European Integration. Berlin [etc.]: Walter de Gruyter, 1985.

Cita MLA (9a ed.)

Lipgens, Walter. Documents on the History of European Integration. Walter de Gruyter, 1985.