MARC全文
02a0020162;0-607-86100-2;20011205d1996 ekmy0engy01;eng;a z 000yy;r;Dams and rivers;a primer on the downstream effects of dams;Michael Collier, Robert H. Webb & John C. Schmidt;Tucson, Arizona;U.S. Geological Survey;1996;iii, 94 p.;ill;Circular;U.S. Geological Survey;1126;2001b;aCircular ; fU.S. Geological Survey ; v1126;坝与河流--下游水坝作用的入门书;a860;Collier ; Webb ; Schmidt;Michael ; Robert H. ; John C.;101;458027 ; EB00060780;P;254.2;C49u;v1126 ; r2504.90;a03;b2;cP