00257nam a2200097Ia 4500008004100000082001900041100001800060245003800078260003500116300000800151140113s9999    xx            000 0 und d  a631.1(02)   K5  a"Adams, R.L."  aFarm Management and Crop Manurial  a1948bOxoford & IBHcNew Delhi  a177