APA
Abel W., . (2006). Agricultural fluctuations in Europe from the thirteenth to the twentieth centuries. New York: Routledge.
Chicago
Abel Wilhelm, . 2006. Agricultural fluctuations in Europe from the thirteenth to the twentieth centuries. New York: Routledge.
Harvard
Abel W., . (2006). Agricultural fluctuations in Europe from the thirteenth to the twentieth centuries. New York: Routledge.
MLA
Abel Wilhelm, . Agricultural fluctuations in Europe from the thirteenth to the twentieth centuries. New York: Routledge. 2006.