02a0008949;¥36.00;20011205d1984 ekmy0engy01;eng;a z 000yy;r;Application of seismic refraction and electric resistivity methods in placer exploration;final report;Scott L. Huang;[S.L.];U.S. Bureau of Mines;1984;112 p.;ill.;Open File;U.S. Bureau of Mines;84-11;2252;aOpen File ; fU.S. Bureau of Mines ; v84-11;a630;Huang;Scott L.;101;437829;630;H86;r¥36.00;a02;b1