00000nz  a2200000n  4500
001  KSH2006007873
005  20060715020431
008  060715 n azknn|abn          |a a|a    | 
150  ▼a후진성[後進性]▲
450  ▼wr▼i영어▼abackwardness▲
550  ▼wh▼a상대적 후진성[相對的後進性]▲
550  ▼a저발전[底發展]▲
550  ▼a지식 격차[知識隔差]▲
550  ▼a후진국[後進國]▲