00000nz  a2200000n  4500
001  KSH1999013927
005  20040101192259
008  990409 n azknn|abn          |a a|a    | 
150  ▼a근접 요인[近接要因]▲
450  ▼wr▼i영어▼aproximate factor▲
550  ▼wg▼a요인(원인)[要因]▲
550  ▼a자연 도태[自然淘汰]▲