00330nam a2200109Ia 450000500170000000800410001702000150005805000260007310000230009924500670012226000310018920251229182933.0251229s9999    xx            000 0 und d  a9290661046  aSPEC HD 9000.6  .A371  aMatthias Von Oppen 0aAgricultural Markets in ther Semi Arid TropicscOppen Matthias  aIndaib  ICRISAT pubc1985