00797nam a2200253 c 4500001001300000005001500013007000300028008004100031020003400072049002800106052001600134056002100150082002200171245007000193260003400263300003800297500001700335650004300352650004700395700004800442700002800490700001400518950001100532KMO20150968320150305103543ta150217s2014    ggkad         001   kor    a9788942519293g93530:c\230000 lEM6081363lEM6081364c201a575.7b15-2  a575.7a530.982601a665.7a620.8622300a가스안전관리론 /d이수경,e엄종호,e윤여송 공저  a파주 :b동화기술,c2014  a377 p. :b삽화, 도표 ;c26 cm  a색인수록 8a가스 안전[--安全]0KSH2005017401 8a산업 재해[産業災害]0KSH19980026521 a이수경,g李壽庚,d1953-0KAC2014171181 a엄종호0KAC2015039301 a윤여송0 b\23000