Cita APA (7a ed.)

Haverkate, R., & Haselen, H. v. (1992). Demographic evolution through time in European regions (Demeter 2015). Office for Official Publications of the European Communities.

Cita Chicago Style (17a ed.)

Haverkate, Roel, y Hein van Haselen. Demographic Evolution Through Time in European Regions (Demeter 2015). Luxembourg: Office for Official Publications of the European Communities, 1992.

Cita MLA (9a ed.)

Haverkate, Roel, y Hein van Haselen. Demographic Evolution Through Time in European Regions (Demeter 2015). Office for Official Publications of the European Communities, 1992.