00281nam a2200097Ia 4500008004100000082002000041100001800061245005500079260004100134300000800175140113s9999    xx            000 0 und d  a546:32:630   J1  a"Cowie, G.A."  aPotash: its production and place in crop nutrition  a1951bEdward Arnold(Pub)Ltd.cLondon  a172