00761nam a2200241 c 4500001001500000005001500015008004100030040001900071041001300090049001700103052002200120056001400142082001600156100004800172245006300220260003600283300001600319502008800335653003600423950002100459963002800480965001100508KDM198604193  19941012184257860821s1986    ulk        AK 000   kor    a011001c0110010 akorbeng0 lEM513534fDM01a526.42b김792ㅊ  a526.42230 a634.9522191 a김재원,g金在源,d1955-0KAC20173338710a체인톱 間伐作業 能率에 關한 硏究/d金在源  a서울:b서울大學校,c1986  a56p.;c26cm0 a학위논문(석사) --b서울大學校 大學院:c林學科 林學專攻,d1986   a체인톱a간벌작업a능률0 a비매품b\2900  a임학과a임학전공  a벌목