00590nam a2200169Ia 450000100060000000300050000600500170001100800410002801000170006910000290008624501060011526000390022130000230026065000550028365000530033870000290039155854BIBL20160527190100.0920402s1988    dcu    gr0   f000100eng0d  adoc92000690 10aWalker, Gloria L.2Local10aSurvey methods and statistical summary of nonfuel mineralscby Gloria L. Walker and Stephen D. Smith.0 aWashingtonbBureau of Minesc1988.  a[2], 44 p.c28 cm. 0aMines and mineral resourceszUnited States.2Local 0aNonfuel minerals industryzUnited States.2Local10aSmith, Stephen D.2Local