00000nz  a2200000n  4500
001  KSH1998025128
005  20021111103923
008  980429 n azknn|abn          |a a|a    | 
150  ▼a단사 함수[單射函數]▲
550  ▼wg▼a함수[函數]▲
550  ▼a단사(수학)[單射]▲
550  ▼a전단사 함수[全單射函數]▲