00000nz  a2200000n  4500
001  KSH1998025727
005  20000207123007
008  980429 n azknn|abn          |a a|a    | 
150  ▼a대수 체계[代數體系]▲
450  ▼wr▼i영어▼aalgbraic system▲
550  ▼a대수체[代數體]▲
550  ▼a대수학[代數學]▲