00000nz  a2200000n  4500
001  KSH1998013596
005  19970616000026
008  980429 n azknn|abn          |a a|a    | 
150  ▼a계급 정년[階級停年]▲
450  ▼a직급 정년[職級停年]▲
450  ▼wr▼i영어▼aage limit by rank▲
450  ▼wr▼i영어▼aretiring age class▲
550  ▼wg▼a정년[停年]▲
550  ▼a계급(사회)[階級]▲