MARC全文
42a0003409;¥184.70;20011205d1997 ekmy;eng;a z 000yy;r;a;2,000,000;Map showing outcrop of the coal-bearing units and land use in the Gulf coast coal region;[map];comp. by Peter D. Warwick ... [et al.];Scale 1:2,000,000;[S.l.];USGS;1997;1 map;Open-File Report;U.S. Geological Survey;97-172;2252;aOpen-File Report ; fU.S. Geological Survey ; v97-172;海湾地区煤区含煤单元露头和土地利用展示图;Coal measures ; Land use maps;a*B4/42 ; a*L/42;Warwick;Peter D.;101;h8726 ; r¥184.70;a04;b1