-
西文图书1.Cost, distribution and utilization of farm machinery in Iowa / S22/HEO
馆藏复本:1
可借复本:1 by Earl O.Heady, John A.Hopkins and Eugene G.McKibben.
Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1943.
(0) 馆藏
-
西文图书2.Changes in technology and labor requirements in crop production : wheat and oats / S512/ERB
馆藏复本:1
可借复本:1 by Robert B. Elwood ... [et al.].
1939.
(0) 馆藏