00603nam a2200205 k 4500001001500000005001500015008004100030020002200071040001900093049002800112052002200140056001900162082001500181245004900196260003300245300002600278653001700304700006500321950001100386KMO199910211  20180720132010990513s1999    ulka          000   kor    a8942570151g93530  a011001c0110010 lEM1844340lEM1844341c201a530.98b이411ㄱ  a530.98a575240 a620.8622100a가스안전공학/d이수경...[等]編著  a서울:b東和技術,c1999  a863p.:b삽도;c26cm  a가스안전1 a이수경,g李壽庚,d1953-,e등편저0KAC2014171184aut0 b\30000