00327nam a2200097Ia 4500008004100000082001900041100001700060245009400077260005000171300000800221140113s9999    xx            000 0 und d  a546:581.2   K1  a"Wallace,T."  aDiagnosis and mineral deficienceis in plants : by visual symptoms :Colour atlas and guide  a1961bHer Mejesty's Stationery OfficecLondon  a125