00430nam a2200145Ia 4500001001000000003000500010008004100015010001100056040000900067100001800076245007500094260005200169300001000221650005300231Para_4956CHAP220125s1914    xx            000 0 und d  a203415  cCHAP  aKeyser, Alvin  aFarm costs on the Colorado Agricultural College Farm  /c Alvin Keyser  aFort Collins  :b Colorado Agricultural College  a56 p.  aAgricultura x Aspectos económicos x Colorado