The Significance and Regulation of Soil Biodiversity: Proceedings of the International Symposium on Soil Biodiversity, held at Michigan State University, East Lansing, May 3–6, 1993 1995 · ENGLISH · PDF View details →
The Cambridge Economic History of Europe from the Decline of the Roman Empire, Volume 5: The Economic Organization of Early Modern Europe 1977 · ENGLISH · PDF View details →
