00365nam a2200109Ia 4500008004100000082001900041100002100060245004000081260004100121630001800162650007500180211109s9999||||xx |||||||||||||| ||und||  a333.381bTHO-I  aThomas [edger],  3aAn Introd To Agricultural Economics  bThomas Nelson and SonsaLondonc1949  xGeneral Stack  aAgricultural Economicsvsocial sciencesEconomicsagriculturexGeneralia