Bavel, B. J. P. v. (1999). Land productivity and agro-systems in the North sea area (Middle ages - 20th century): Elements for comparison. Turnhout.
Chicago-Zitierstil (17. Ausg.)Bavel, Bas J. P. van. Land Productivity and Agro-systems in the North Sea Area (Middle Ages - 20th Century): Elements for Comparison. Brepols: Turnhout, 1999.
MLA-Zitierstil (9. Ausg.)Bavel, Bas J. P. van. Land Productivity and Agro-systems in the North Sea Area (Middle Ages - 20th Century): Elements for Comparison. Turnhout, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.