=LDR 22 4500 =001 5944 =082 04$a551.49 VER =100 1\$aVerstraten, J. M. =245 10$aWater-rock interactions: a case study in a very low grade metamorphic shale catchment in the Ardennes, NW Luxembourg =260 \\$aNorwich, England :$bGeo Books,$c1980 =650 \0$aBooks =852 \\$bFreeman Library$h551.49 VER