18.97.14.90
18.97.14.90
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제1장 농업기계화의 동향 ; 1-3 . ' 89 농업기계화사업 시책
Chap 1. Outlook of Agriculture Mechanization ; 1-3 . Mechanization Policy in 1989
김진일
UCI I410-ECN-0102-2009-550-007347623
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