00259nam a2200109 a 450000500170000000800410001702000180005805000220007624500240009826000180012230000090014020140412111423.0080123s19uu    xx            00    eng d  a89-319-1414-8  aERbKo84 v.4 1998  aEQ book 4 (Korean).  aKorea,c1998.  a18p.