机读格式显示(MARC)
- 000 01205nam0 2200229 450
- 100 __ |a 19920115d1991 em y0chiy0121 ea
- 200 1_ |a 农业机械化基础知识讲义 |f 中国农业科学院编
- 801 _0 |a CN |b NLC |c 19920115
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