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西文图书1.The mechanical equipment of farms / S22/HJC
馆藏复本:7
可借复本:5 by J.C. Hawkins.
Farmer & Stock-Breeder Ltd., 1949.
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西文图书2.Soil loads on plough bodies. Part II, The forces acting on general purpose, semi-digger and digger b S34/ROJ
馆藏复本:1
可借复本:1 by O.J.J.Rogers, J.C.Hawkins.
National Ins. of Ag. Engineering, 1956.
(0) 馆藏