Life, service and cost of service of farm machines on 400 lowa farms
Davidson, J.Brownlee, Henderson, S.Milton
Life, service and cost of service of farm machines on 400 lowa farms - Lowa 1942 - 282-299 p. - Bulletin No. P37 (New Series) .
Life, service and cost of service of farm machines on 400 lowa farms - Lowa 1942 - 282-299 p. - Bulletin No. P37 (New Series) .