00302nam a2200109Ia 450000500170000000800410001708200140005810000190007224500510009126000420014230000080018420260224040956.0260224s9999||||xx |||||||||||||| ||und||  a620.1 SNO  aSnowden, O.L.  0aPractical methods in teaching farm mechanics :  aDanville, Ill., The Interstate c1952  a658