008891020s1989 ulka 001 kor
■012 ▼aKMO198904758
■05201▼a567.6▼b이691ㅇ
■056 ▼a567.6▼23
■082 ▼a621.385▼219
■090 ▼a567.6▼b이691ㅇ
■24510▼a有線通信工學▼d李昌柱...[등저]
■260 ▼a서울▼b勤學社▼c1989
■300 ▼a525p.▼b삽도▼c23cm
■653 ▼a유선통신공학
■7001 ▼a이창주▼e등저
■9500 ▼b\7000
■965 ▼a유선통신공학