00388nam a2200145Ia 4500008004100000020001500041082001600056100002000072245003800092260004300130300000800173650002300181650001800204653002000222170901s1969    xx            000 0 und d  a0471937525  a581.2bW39I  aWheeler, B.E.J. 3aAn Introduction to Plant Diseases  aLondonbJohn Wiley and Sons Ltd.c1969  a374  aBotanical sciences  aPure Sciences  aPlant pathology