MARC全文
02a0027172;0-607-88721-4;20011205d1997 ekmy0engy01;eng;a z 100yy;r;Forum on geologic mapping applications in the Washington-Baltimore urban area;proceedings, held in Reston, Virginia, Apr. 23, 1997;ed. by J. Wright Horton, Jr. & Emery T. Cleaves;Washington;U.S. GPO;1997;vi, 46 p.;ill;Circular;U.S. Geological Survey;1148;2001b;aCircular ; fU.S. Geological Survey ; v1148;华盛顿-巴尔的摩城市地区的地质填图应用论坛(会议录);a621.08;Horton ; Cleaves;J. Wright Jr. ; Emery T.;Forum on Geologic Mapping Applications in the Washington-Baltimore Urban Area;Reston;1997;101;460800 ; 460801;P;254.2;C49u;v1148 ; r948.57;a03;b2;cP