00321nam a2200121Ia 450000500170000000800410001705000210005810000190007924500400009825000080013826000340014665000190018020251229192424.0251229s9999    xx            000 0 und d  aS 675 .S515 1980  aShippen, J. M. 0aBasic farm machinery.cJ. M Shippen  a3rd  aOxfordb Pergamon pressc1980  aFarm Machinery