00401nam a2200157 a 450000500170000002000150001708200160003210000250004824500470007326000310012030000250015163000160017663000120019263000150020471000240021920251202164157.0  a0471884103  a631.58bMIL  aSprague, Milton Ad_  aNo-Tillage and surface-Tillage agriculture  aNew YorkbJohn Wileyc1986  axxii,468p, 23cm.bHB  aDry farming  aTillage  aNo-Tillage  aTriplett, Glover B.