00303nam a2200121Ia 45000030006000000080041000060400015000471000022000622450047000842600021001315460012001520050017001640STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aJugenheimer, R.W.  aCorn:Improvement seed production, and uses  bJohn Wileyc1976  aEnglish20220125170342.0