00333nam a2200097Ia 4500008004100000082002300041100003500064245008000099260004800179300000800227140113s9999    xx            000 0 und d  a631.83(082.2)   K3  aInternational Potash Institute  aJapanese Potassium syposium : Fourth Japanese Potassium Congress Tokyo 1961  a1963bInternational Potash InstitutecBerne  a148